docs: use extended theme

docs/.vuepress/config.js

@@ -24,6 +24,7 @@ module.exports = {
     ['meta', { name: 'msapplication-TileColor', content: '#000000' }]
   ],
   serviceWorker: true,
+  theme: 'vue',
   themeConfig: {
     repo: 'vuejs/vuepress',
     editLinks: true,

package.json

@@ -88,6 +88,7 @@
     "vue-server-renderer": "^2.5.16",
     "vue-template-compiler": "^2.5.16",
     "vuepress-html-webpack-plugin": "^3.2.0",
+    "vuepress-theme-vue": "^1.0.0",
     "webpack": "^4.5.0",
     "webpack-chain": "^4.6.0",
     "webpack-merge": "^4.1.2",

yarn.lock

@@ -968,10 +968,6 @@ [email protected], combined-stream@^1.0.5, combined-stream@~1.0.5:
   dependencies:
     delayed-stream "~1.0.0"
 
-[email protected]:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-1.0.0.tgz#5e6a88e7070ff5908836ead19169548c30f90bcd"
-
 [email protected], commander@^2.14.1, commander@^2.15.1, commander@^2.9.0, commander@~2.15.0:
   version "2.15.1"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.15.1.tgz#df46e867d0fc2aec66a34662b406a9ccafff5b0f"
@@ -2528,6 +2524,15 @@ graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
 
+gray-matter@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/gray-matter/-/gray-matter-4.0.1.tgz#375263c194f0d9755578c277e41b1c1dfdf22c7d"
+  dependencies:
+    js-yaml "^3.11.0"
+    kind-of "^6.0.2"
+    section-matter "^1.0.0"
+    strip-bom-string "^1.0.0"
+
 handlebars@^4.0.2:
   version "4.0.11"
   resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.11.tgz#630a35dfe0294bc281edae6ffc5d329fc7982dcc"
@@ -3346,7 +3351,7 @@ js-tokens@^3.0.0, js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
 
-js-yaml@^3.10.0, js-yaml@^3.11.0, js-yaml@^3.4.3, js-yaml@^3.9.0, js-yaml@^3.9.1:
+js-yaml@^3.11.0, js-yaml@^3.4.3, js-yaml@^3.9.0, js-yaml@^3.9.1:
   version "3.11.0"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.11.0.tgz#597c1a8bd57152f26d622ce4117851a51f5ebaef"
   dependencies:
@@ -5548,6 +5553,13 @@ schema-utils@^0.4.0, schema-utils@^0.4.2, schema-utils@^0.4.3, schema-utils@^0.4
     ajv "^6.1.0"
     ajv-keywords "^3.1.0"
 
+section-matter@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/section-matter/-/section-matter-1.0.0.tgz#e9041953506780ec01d59f292a19c7b850b84167"
+  dependencies:
+    extend-shallow "^2.0.1"
+    kind-of "^6.0.0"
+
 select@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/select/-/select-1.1.2.tgz#0e7350acdec80b1108528786ec1d4418d11b396d"
@@ -5916,6 +5928,10 @@ strip-ansi@^4.0.0:
   dependencies:
     ansi-regex "^3.0.0"
 
+strip-bom-string@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/strip-bom-string/-/strip-bom-string-1.0.0.tgz#e5211e9224369fbb81d633a2f00044dc8cedad92"
+
 strip-bom@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
@@ -6517,6 +6533,10 @@ vuepress-html-webpack-plugin@^3.2.0:
     toposort "^1.0.0"
     util.promisify "1.0.0"
 
+vuepress-theme-vue@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/vuepress-theme-vue/-/vuepress-theme-vue-1.0.0.tgz#d70c90a691c31d3a39e5a32073d216520a12809e"
+
 w3c-hr-time@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/w3c-hr-time/-/w3c-hr-time-1.0.1.tgz#82ac2bff63d950ea9e3189a58a65625fedf19045"
@@ -6851,13 +6871,6 @@ yallist@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
 
-yaml-front-matter@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/yaml-front-matter/-/yaml-front-matter-4.0.0.tgz#11c378c54eac3061a82cbaf693a69b4e4c44f484"
-  dependencies:
-    commander "1.0.0"
-    js-yaml "^3.10.0"
-
 yargs@~3.10.0:
   version "3.10.0"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.10.0.tgz#f7ee7bd857dd7c1d2d38c0e74efbd681d1431fd1"