diff --git a/yarn.lock b/yarn.lock
index 7486e3ca..6ff4a564 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1037,6 +1037,13 @@
   dependencies:
     lodash.debounce "^4.0.8"
 
+"@vuepress/plugin-active-header-links@1.8.2":
+  version "1.8.2"
+  resolved "https://registry.yarnpkg.com/@vuepress/plugin-active-header-links/-/plugin-active-header-links-1.8.2.tgz#0cb9b29c826dd97d35357a9b09c962ef782cb793"
+  integrity sha512-JmXAQg8D7J8mcKe2Ue3BZ9dOCzJMJXP4Cnkkc/IrqfDg0ET0l96gYWZohCqlvRIWt4f0VPiFAO4FLYrW+hko+g==
+  dependencies:
+    lodash.debounce "^4.0.8"
+
 "@vuepress/plugin-google-analytics@~1.0.0-alpha.0":
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/@vuepress/plugin-google-analytics/-/plugin-google-analytics-1.0.4.tgz#1e50232c94149f99fb4cd1381dad49e8eab2f2d6"
@@ -1056,6 +1063,13 @@
   dependencies:
     nprogress "^0.2.0"
 
+"@vuepress/plugin-nprogress@1.8.2":
+  version "1.8.2"
+  resolved "https://registry.yarnpkg.com/@vuepress/plugin-nprogress/-/plugin-nprogress-1.8.2.tgz#dc6c082925420c8c59ecb7fc2d4a9401f6d4664a"
+  integrity sha512-3TOBee2NM3WLr1tdjDTGfrAMggjN+OlEPyKyv8FqThsVkDYhw48O3HwqlThp9KX7UbL3ExxIFBwWRFLC+kYrdw==
+  dependencies:
+    nprogress "^0.2.0"
+
 "@vuepress/plugin-register-components@1.5.0":
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/@vuepress/plugin-register-components/-/plugin-register-components-1.5.0.tgz#0d83956d576e80db7d45e1404e9da9db075245f1"
@@ -1068,6 +1082,11 @@
   resolved "https://registry.yarnpkg.com/@vuepress/plugin-search/-/plugin-search-1.5.0.tgz#d47a29402945649b69aa6a9db15315075c1651ea"
   integrity sha512-zZ7awYWzube+FwYQP2GcrCeoGUxcOWQm6cOaxQ9BiEn+M8sj4/fn18sKjGkzREQ+BVJguxHw0y29gUlvHALPhQ==
 
+"@vuepress/plugin-search@1.8.2":
+  version "1.8.2"
+  resolved "https://registry.yarnpkg.com/@vuepress/plugin-search/-/plugin-search-1.8.2.tgz#74b92f663acf6b4560e15dc0442a84c4e874e206"
+  integrity sha512-JrSJr9o0Kar14lVtZ4wfw39pplxvvMh8vDBD9oW09a+6Zi/4bySPGdcdaqdqGW+OHSiZNvG+6uyfKSBBBqF6PA==
+
 "@vuepress/shared-utils@1.5.0":
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/@vuepress/shared-utils/-/shared-utils-1.5.0.tgz#b8e1f6058199e03447630394f2ab66c6749ad0e3"
@@ -1098,6 +1117,21 @@
     vuepress-plugin-container "^2.0.2"
     vuepress-plugin-smooth-scroll "^0.0.3"
 
+"@vuepress/theme-default@^1.2.0":
+  version "1.8.2"
+  resolved "https://registry.yarnpkg.com/@vuepress/theme-default/-/theme-default-1.8.2.tgz#7f474036c752c1f9801b83f68f5c70c092b182b4"
+  integrity sha512-rE7M1rs3n2xp4a/GrweO8EGwqFn3EA5gnFWdVmVIHyr7C1nix+EqjpPQF1SVWNnIrDdQuCw38PqS+oND1K2vYw==
+  dependencies:
+    "@vuepress/plugin-active-header-links" "1.8.2"
+    "@vuepress/plugin-nprogress" "1.8.2"
+    "@vuepress/plugin-search" "1.8.2"
+    docsearch.js "^2.5.2"
+    lodash "^4.17.15"
+    stylus "^0.54.8"
+    stylus-loader "^3.0.2"
+    vuepress-plugin-container "^2.0.2"
+    vuepress-plugin-smooth-scroll "^0.0.3"
+
 "@webassemblyjs/ast@1.9.0":
   version "1.9.0"
   resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.9.0.tgz#bd850604b4042459a5a41cd7d338cbed695ed964"
@@ -3393,6 +3427,18 @@ glob@^7.0.3, glob@^7.1.2, glob@^7.1.3, glob@^7.1.4:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
+glob@^7.1.6:
+  version "7.1.7"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.7.tgz#3b193e9233f01d42d0b3f78294bbeeb418f94a90"
+  integrity sha512-OvD9ENzPLbegENnYP5UUfJIirTg4+XwMWGaQfQTY0JenxNvvIKP3U3/tAQSPIu/lHxXYSZmpXlUHeqAIdKzBLQ==
+  dependencies:
+    fs.realpath "^1.0.0"
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "^3.0.4"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
 global@^4.3.2:
   version "4.4.0"
   resolved "https://registry.yarnpkg.com/global/-/global-4.4.0.tgz#3e7b105179006a323ed71aafca3e9c57a5cc6406"
@@ -4686,6 +4732,11 @@ mkdirp@^0.5.1, mkdirp@^0.5.3, mkdirp@~0.5.1, mkdirp@~0.5.x:
   dependencies:
     minimist "^1.2.5"
 
+mkdirp@~1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-1.0.4.tgz#3eb5ed62622756d79a5f0e2a221dfebad75c2f7e"
+  integrity sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw==
+
 move-concurrently@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/move-concurrently/-/move-concurrently-1.0.1.tgz#be2c005fda32e0b29af1f05d7c4b33214c701f92"
@@ -5736,9 +5787,9 @@ querystring@0.2.0:
   integrity sha1-sgmEkgO7Jd+CDadW50cAWHhSFiA=
 
 querystringify@^2.1.1:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/querystringify/-/querystringify-2.1.1.tgz#60e5a5fd64a7f8bfa4d2ab2ed6fdf4c85bad154e"
-  integrity sha512-w7fLxIRCRT7U8Qu53jQnJyPkYZIaR4n5151KMfcJlO/A9397Wxb1amJvROTK6TOnp7PfoAmg/qXiNHI+08jRfA==
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/querystringify/-/querystringify-2.2.0.tgz#3345941b4153cb9d082d8eee4cda2016a9aef7f6"
+  integrity sha512-FIqgj2EUvTa7R50u0rGsyTftzjYmv/a3hO345bZNrqabNqjtgiDMgmo4mkUjd+nzU5oF3dClKqFIPUKybUyqoQ==
 
 randombytes@^2.0.0, randombytes@^2.0.1, randombytes@^2.0.5, randombytes@^2.1.0:
   version "2.1.0"
@@ -6591,6 +6642,20 @@ stylus@^0.54.5:
     semver "^6.0.0"
     source-map "^0.7.3"
 
+stylus@^0.54.8:
+  version "0.54.8"
+  resolved "https://registry.yarnpkg.com/stylus/-/stylus-0.54.8.tgz#3da3e65966bc567a7b044bfe0eece653e099d147"
+  integrity sha512-vr54Or4BZ7pJafo2mpf0ZcwA74rpuYCZbxrHBsH8kbcXOwSfvBFwsRfpGO5OD5fhG5HDCFW737PKaawI7OqEAg==
+  dependencies:
+    css-parse "~2.0.0"
+    debug "~3.1.0"
+    glob "^7.1.6"
+    mkdirp "~1.0.4"
+    safer-buffer "^2.1.2"
+    sax "~1.2.4"
+    semver "^6.3.0"
+    source-map "^0.7.3"
+
 supports-color@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
@@ -6938,9 +7003,9 @@ url-loader@^1.0.1:
     schema-utils "^1.0.0"
 
 url-parse@^1.4.3:
-  version "1.4.7"
-  resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.4.7.tgz#a8a83535e8c00a316e403a5db4ac1b9b853ae278"
-  integrity sha512-d3uaVyzDB9tQoSXFvuSUNFibTd9zxd2bkVrDRvF5TmvWWQwqE4lgYJ5m+x1DbecWkw+LK4RNl2CU1hHuOKPVlg==
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.5.1.tgz#d5fa9890af8a5e1f274a2c98376510f6425f6e3b"
+  integrity sha512-HOfCOUJt7iSYzEx/UqgtwKRMC6EU91NFhsCHMv9oM03VJcVo2Qrp8T8kI9D7amFf1cu+/3CEhgb3rF9zL7k85Q==
   dependencies:
     querystringify "^2.1.1"
     requires-port "^1.0.0"