diff --git a/package.json b/package.json
index 17c1fa4..7f31325 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,7 @@
     "gatsby-remark-images": "^3.3.25",
     "gatsby-remark-katex": "^3.3.10",
     "gatsby-remark-prismjs": "^3.5.10",
-    "gatsby-remark-relative-images": "^0.3.0",
+    "gatsby-remark-relative-images": "^2.0.2",
     "gatsby-remark-responsive-iframe": "^2.4.12",
     "gatsby-remark-smartypants": "^2.3.10",
     "gatsby-source-filesystem": "^2.3.24",
diff --git a/yarn.lock b/yarn.lock
index 61aeaee..f0c7337 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4439,14 +4439,6 @@ babel-plugin-transform-react-remove-prop-types@^0.4.24:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-react-remove-prop-types/-/babel-plugin-transform-react-remove-prop-types-0.4.24.tgz#f2edaf9b4c6a5fbe5c1d678bfb531078c1555f3a"
 
-babel-polyfill@^6.26.0:
-  version "6.26.0"
-  resolved "https://registry.yarnpkg.com/babel-polyfill/-/babel-polyfill-6.26.0.tgz#379937abc67d7895970adc621f284cd966cf2153"
-  dependencies:
-    babel-runtime "^6.26.0"
-    core-js "^2.5.0"
-    regenerator-runtime "^0.10.5"
-
 babel-preset-current-node-syntax@^0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/babel-preset-current-node-syntax/-/babel-preset-current-node-syntax-0.1.3.tgz#b4b547acddbf963cba555ba9f9cbbb70bfd044da"
@@ -5323,7 +5315,7 @@ charenc@~0.0.1:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/charenc/-/charenc-0.0.2.tgz#c0a1d2f3a7092e03774bfa83f14c0fc5790a8667"
 
-cheerio@^1.0.0-rc.3:
+cheerio@1.0.0-rc.3, cheerio@^1.0.0-rc.3:
   version "1.0.0-rc.3"
   resolved "https://registry.yarnpkg.com/cheerio/-/cheerio-1.0.0-rc.3.tgz#094636d425b2e9c0f4eb91a46c05630c9a1a8bf6"
   dependencies:
@@ -5975,7 +5967,7 @@ core-js@^1.0.0:
   version "1.2.7"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
 
-core-js@^2.4.0, core-js@^2.5.0:
+core-js@^2.4.0:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.9.tgz#6b4b214620c834152e179323727fc19741b084f2"
 
@@ -6206,6 +6198,11 @@ css-select@^2.0.0:
     domutils "^1.7.0"
     nth-check "^1.0.2"
 
+css-selector-parser@^1.0.0:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/css-selector-parser/-/css-selector-parser-1.4.1.tgz#03f9cb8a81c3e5ab2c51684557d5aaf6d2569759"
+  integrity sha512-HYPSb7y/Z7BNDCOrakL4raGO2zltZkbeXyAd6Tg9obzix6QhzxCotdBl6VT0Dv4vZfJGVz3WL/xaEI9Ly3ul0g==
+
 css-selector-parser@^1.1.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/css-selector-parser/-/css-selector-parser-1.3.0.tgz#5f1ad43e2d8eefbfdc304fcd39a521664943e3eb"
@@ -6371,13 +6368,6 @@ cyclist@~0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/cyclist/-/cyclist-0.2.2.tgz#1b33792e11e914a2fd6d6ed6447464444e5fa640"
 
-d@1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/d/-/d-1.0.1.tgz#8698095372d58dbee346ffd0c7093f99f8f9eb5a"
-  dependencies:
-    es5-ext "^0.10.50"
-    type "^1.0.1"
-
 damerau-levenshtein@^1.0.6:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/damerau-levenshtein/-/damerau-levenshtein-1.0.6.tgz#143c1641cb3d85c60c32329e26899adea8701791"
@@ -6555,15 +6545,6 @@ deep-is@^0.1.3, deep-is@~0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
 
-deep-map@^1.5.0:
-  version "1.5.0"
-  resolved "https://registry.yarnpkg.com/deep-map/-/deep-map-1.5.0.tgz#eaa595cb81783ca2800f26a42e09f16e7d4fb890"
-  integrity sha1-6qWVy4F4PKKADyakLgnxbn1PuJA=
-  dependencies:
-    es6-weak-map "^2.0.2"
-    lodash "^4.17.4"
-    tslib "^1.6.0"
-
 deepmerge@^2.1.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/deepmerge/-/deepmerge-2.2.1.tgz#5d3ff22a01c00f645405a2fbc17d0778a1801170"
@@ -7304,38 +7285,6 @@ es-to-primitive@^1.2.1:
     is-date-object "^1.0.1"
     is-symbol "^1.0.2"
 
-es5-ext@^0.10.35, es5-ext@^0.10.46, es5-ext@^0.10.50, es5-ext@~0.10.14:
-  version "0.10.50"
-  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.50.tgz#6d0e23a0abdb27018e5ac4fd09b412bc5517a778"
-  dependencies:
-    es6-iterator "~2.0.3"
-    es6-symbol "~3.1.1"
-    next-tick "^1.0.0"
-
-es6-iterator@^2.0.3, es6-iterator@~2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.3.tgz#a7de889141a05a94b0854403b2d0a0fbfa98f3b7"
-  dependencies:
-    d "1"
-    es5-ext "^0.10.35"
-    es6-symbol "^3.1.1"
-
-es6-symbol@^3.1.1, es6-symbol@~3.1.1:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.1.tgz#bf00ef4fdab6ba1b46ecb7b629b4c7ed5715cc77"
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-
-es6-weak-map@^2.0.2:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/es6-weak-map/-/es6-weak-map-2.0.3.tgz#b6da1f16cc2cc0d9be43e6bdbfc5e7dfcdf31d53"
-  dependencies:
-    d "1"
-    es5-ext "^0.10.46"
-    es6-iterator "^2.0.3"
-    es6-symbol "^3.1.1"
-
 escalade@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/escalade/-/escalade-3.0.1.tgz#52568a77443f6927cd0ab9c73129137533c965ed"
@@ -9045,18 +8994,16 @@ gatsby-remark-prismjs@^3.5.10:
     parse-numeric-range "^0.0.2"
     unist-util-visit "^1.4.1"
 
-gatsby-remark-relative-images@^0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/gatsby-remark-relative-images/-/gatsby-remark-relative-images-0.3.0.tgz#6e31b0045d943ae1822ced469ce3b39b772e8ee4"
-  integrity sha512-DvFJiuqV/2I92OvKfVRQl0KxyOEE3zI/ALbxHFXHwCMzz+Pkd/HzmSyTLVyq9iBogzTQB+OpzDtgrTAtQwddzg==
+gatsby-remark-relative-images@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/gatsby-remark-relative-images/-/gatsby-remark-relative-images-2.0.2.tgz#17a26ba15762670c8125a33ecd8316a0124cb06f"
+  integrity sha512-VD8mHbTDvSKIbpJ5pWOWdooDhDsU5lh6QUg5d9bw0yq+BJRpl2NnUDFV3L+S2E2CSKonJ9rKZ/SPMpc7nfLG+w==
   dependencies:
-    babel-polyfill "^6.26.0"
-    cheerio "^1.0.0-rc.3"
-    deep-map "^1.5.0"
-    is-relative-url "^2.0.0"
-    lodash "^4.17.15"
-    slash "^2.0.0"
-    unist-util-select "^1.5.0"
+    cheerio "1.0.0-rc.3"
+    is-invalid-path "1.0.2"
+    lodash "4.17.20"
+    traverse "0.6.6"
+    unist-util-select "3.0.1"
 
 gatsby-remark-responsive-iframe@^2.4.12:
   version "2.4.12"
@@ -11131,6 +11078,11 @@ is-installed-globally@^0.3.1:
     global-dirs "^2.0.1"
     is-path-inside "^3.0.1"
 
+is-invalid-path@1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-invalid-path/-/is-invalid-path-1.0.2.tgz#2f84731559f4936abcf1b227632719cf45c5dc0e"
+  integrity sha512-6KLcFrPCEP3AFXMfnWrIFkZpYNBVzZAoBJJDEZKtI3LXkaDjM3uFMJQjxiizUuZTZ9Oh9FNv/soXbx5TcpaDmA==
+
 is-invalid-path@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/is-invalid-path/-/is-invalid-path-0.1.0.tgz#307a855b3cf1a938b44ea70d2c61106053714f34"
@@ -12436,6 +12388,11 @@ lodash.uniq@4.5.0, lodash.uniq@^4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
 
+lodash@4.17.20, lodash@^4.17.20:
+  version "4.17.20"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
+  integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
+
 lodash@^4.0.0, lodash@^4.1.1, lodash@^4.11.1, lodash@^4.15.0, lodash@^4.17.11, lodash@^4.17.13, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0, lodash@~4.17.10:
   version "4.17.15"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
@@ -12445,11 +12402,6 @@ lodash@^4.17.10, lodash@^4.17.19:
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
   integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
 
-lodash@^4.17.20:
-  version "4.17.20"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
-  integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
-
 log-symbols@^2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-2.2.0.tgz#5740e1c5d6f0dfda4ad9323b5332107ef6b4c40a"
@@ -13871,6 +13823,11 @@ normalize.css@^8.0.1:
   resolved "https://registry.yarnpkg.com/normalize.css/-/normalize.css-8.0.1.tgz#9b98a208738b9cc2634caacbc42d131c97487bf3"
   integrity sha512-qizSNPO93t1YUuUhP22btGOo3chcvDFqFaj2TRybP0DMxkHOCTYwp3n34fel4a31ORXy4m1Xq0Gyqpb5m33qIg==
 
+not@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/not/-/not-0.1.0.tgz#c9691c1746c55dcfbe54cbd8bd4ff041bc2b519d"
+  integrity sha1-yWkcF0bFXc++VMvYvU/wQbwrUZ0=
+
 npm-bundled@^1.0.1:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/npm-bundled/-/npm-bundled-1.0.6.tgz#e7ba9aadcef962bb61248f91721cd932b3fe6bdd"
@@ -13911,7 +13868,7 @@ npm-run-path@^4.0.0:
     gauge "~2.7.3"
     set-blocking "~2.0.0"
 
-nth-check@^1.0.1, nth-check@^1.0.2, nth-check@~1.0.1:
+nth-check@^1.0.0, nth-check@^1.0.1, nth-check@^1.0.2, nth-check@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/nth-check/-/nth-check-1.0.2.tgz#b2bd295c37e3dd58a3bf0700376663ba4d9cf05c"
   dependencies:
@@ -16326,10 +16283,6 @@ regenerate@^1.2.1, regenerate@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/regenerate/-/regenerate-1.4.0.tgz#4a856ec4b56e4077c557589cae85e7a4c8869a11"
 
-regenerator-runtime@^0.10.5:
-  version "0.10.5"
-  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.10.5.tgz#336c3efc1220adcedda2c9fab67b5a7955a33658"
-
 regenerator-runtime@^0.11.0:
   version "0.11.1"
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz#be05ad7f9bf7d22e056f9726cee5017fbf19e2e9"
@@ -17513,10 +17466,6 @@ slash@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/slash/-/slash-1.0.0.tgz#c41f2f6c39fc16d1cd17ad4b5d896114ae470d55"
 
-slash@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/slash/-/slash-2.0.0.tgz#de552851a1759df3a8f206535442f5ec4ddeab44"
-
 slash@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/slash/-/slash-3.0.0.tgz#6539be870c165adbd5240220dbe361f1bc4d4634"
@@ -18916,6 +18865,11 @@ tr46@^2.0.0:
   dependencies:
     punycode "^2.1.1"
 
+traverse@0.6.6:
+  version "0.6.6"
+  resolved "https://registry.yarnpkg.com/traverse/-/traverse-0.6.6.tgz#cbdf560fd7b9af632502fed40f918c157ea97137"
+  integrity sha1-y99WD9e5r2MlAv7UD5GMFX6pcTc=
+
 "traverse@>=0.3.0 <0.4":
   version "0.3.9"
   resolved "https://registry.yarnpkg.com/traverse/-/traverse-0.3.9.tgz#717b8f220cc0bb7b44e40514c22b2e8bbc70d8b9"
@@ -19004,7 +18958,7 @@ tslib@^1.0.0, tslib@^1.11.2:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.13.0.tgz#c881e13cc7015894ed914862d276436fa9a47043"
   integrity sha512-i/6DQjL8Xf3be4K/E6Wgpekn5Qasl1usyw++dAA35Ue5orEn65VIxOA+YvNNl9HV3qv70T7CNwjODHZrLwvd1Q==
 
-tslib@^1.10.0, tslib@^1.6.0, tslib@^1.8.1, tslib@^1.9.0, tslib@^1.9.3:
+tslib@^1.10.0, tslib@^1.8.1, tslib@^1.9.0, tslib@^1.9.3:
   version "1.10.0"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.10.0.tgz#c3c19f95973fb0a62973fb09d90d961ee43e5c8a"
 
@@ -19098,10 +19052,6 @@ type-of@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/type-of/-/type-of-2.0.1.tgz#e72a1741896568e9f628378d816d6912f7f23972"
 
-type@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/type/-/type-1.0.1.tgz#084c9a17fcc9151a2cdb1459905c2e45e4bb7d61"
-
 typedarray-to-buffer@^3.1.5:
   version "3.1.5"
   resolved "https://registry.yarnpkg.com/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz#a97ee7a9ff42691b9f783ff1bc5112fe3fca9080"
@@ -19378,6 +19328,17 @@ unist-util-remove@^2.0.0:
   dependencies:
     unist-util-is "^4.0.0"
 
+unist-util-select@3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/unist-util-select/-/unist-util-select-3.0.1.tgz#787fc452db9ba77f0ade0e7dc53c3d9d4acc79c7"
+  integrity sha512-VQpTuqZVJlRbosQdnLdTPIIqwZeU70YZ5aMBOqtFNGeeCdYn6ORZt/9RiaVlbl06ocuf58SVMoFa7a13CSGPMA==
+  dependencies:
+    css-selector-parser "^1.0.0"
+    not "^0.1.0"
+    nth-check "^1.0.0"
+    unist-util-is "^4.0.0"
+    zwitch "^1.0.0"
+
 unist-util-select@^1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/unist-util-select/-/unist-util-select-1.5.0.tgz#a93c2be8c0f653827803b81331adec2aa24cd933"