Update config for next.pegjs.org

- Enable 'smoothScroll' option
- Use '@vuepress/plugin-back-to-top'
- Use '@vuepress/plugin-google-analytics'
- Add 'docs/.vuepress/favicon.ico'

docs/.vuepress/config.js

@@ -13,7 +13,7 @@ module.exports = {
 
     ],
     dest: "dist",
-    ga: "UA-100728112-1",
+
     themeConfig: {
 
         nav: require( "./config/nav.js" ),
@@ -34,9 +34,17 @@ module.exports = {
         docsDir: "docs",
         editLinks: true,
         evergreen: false,
+        smoothScroll: true,
 
     },
 
+    plugins: [
+        [ '@vuepress/back-to-top', true ],
+        [ '@vuepress/google-analytics', {
+            ga: 'UA-100728112-1'
+        } ],
+    ],
+
     extraWatchFiles: [
         require.resolve( "./config/nav.js" ),
         require.resolve( "./config/sidebar.js" ),

docs/package.json

@@ -0,0 +1,9 @@
+{
+    "name": "@pegjs/website",
+    "version": "2.0.0-wip",
+    "private": true,
+    "dependencies": {
+        "@vuepress/plugin-back-to-top": "1.1.0",
+        "@vuepress/plugin-google-analytics": "1.1.0"
+    }
+}

package.json

@@ -2,6 +2,7 @@
     "name": "pegjs-dev",
     "private": true,
     "workspaces": [
+        "docs",
         "packages/*",
         "tools/*",
         "test"