docs: bump vuepress to enable smooth-scroll

Author: billyyyyy3320

docs/.vuepress/config.js

@@ -24,6 +24,7 @@ module.exports = {
         },
       ],
     },
+    smoothScroll: true,
   },
 }
 

package.json

@@ -78,7 +78,7 @@
     "sort-package-json": "^1.31.0",
     "ts-node": "^7.0.1",
     "typescript": "3.1.4",
-    "vuepress": "^1.0.0"
+    "vuepress": "^1.2.0"
   },
   "publishConfig": {
     "registry": "https://registry.npmjs.org/"

yarn.lock

@@ -9874,7 +9874,7 @@ vuepress-plugin-smooth-scroll@^0.0.3:
   dependencies:
     smoothscroll-polyfill "^0.4.3"
 
-vuepress@^1.0.0:
+vuepress@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/vuepress/-/vuepress-1.2.0.tgz#2f2cdf337ad40a3e4866dfd33e97b840db386af7"
   integrity sha512-EfHo8Cc73qo+1Pm18hM0qOGynmDr8q5fu2664obynsdCJ1zpvoShVnA0Msraw4SI2xDc0iAoIb3dTwxUIM8DAw==