update dependency: vuepress

package.json

 {
   "devDependencies": {
-    "@vuepress/plugin-docsearch": "2.0.0-beta.36",
-    "@vuepress/plugin-git": "2.0.0-beta.36",
-    "@vuepress/plugin-google-analytics": "2.0.0-beta.36",
-    "@vuepress/plugin-medium-zoom": "2.0.0-beta.36",
-    "@vuepress/plugin-nprogress": "2.0.0-beta.36",
-    "@vuepress/plugin-pwa": "2.0.0-beta.36",
-    "@vuepress/plugin-pwa-popup": "2.0.0-beta.36",
-    "@vuepress/plugin-register-components": "2.0.0-beta.36",
-    "@vuepress/plugin-toc": "2.0.0-beta.36",
-    "vuepress": "2.0.0-beta.36"
+    "@vuepress/plugin-docsearch": " 2.0.0-beta.37",
+    "@vuepress/plugin-git": " 2.0.0-beta.37",
+    "@vuepress/plugin-google-analytics": " 2.0.0-beta.37",
+    "@vuepress/plugin-medium-zoom": " 2.0.0-beta.37",
+    "@vuepress/plugin-nprogress": " 2.0.0-beta.37",
+    "@vuepress/plugin-pwa": " 2.0.0-beta.37",
+    "@vuepress/plugin-pwa-popup": " 2.0.0-beta.37",
+    "@vuepress/plugin-register-components": " 2.0.0-beta.37",
+    "@vuepress/plugin-toc": " 2.0.0-beta.37",
+    "vuepress": " 2.0.0-beta.37"
   },
   "scripts": {
     "docs:dev": "vuepress dev docs",