Redirect from old docs to new

Google search result showed an old docs page for 2.6. This commit adds a
redirect for that link to the  new docs.

docs/docusaurus.config.js

@@ -53,7 +53,21 @@ const config = {
         ],
     ],
 
-    plugins: [require.resolve("@cmfcmf/docusaurus-search-local")],
+    plugins: [
+        require.resolve("@cmfcmf/docusaurus-search-local"),
+        [
+            "@docusaurus/plugin-client-redirects",
+            {
+                fromExtensions: ["html"],
+                redirects: [
+                    {
+                        to: "/2.6/new-features",
+                        from: "/2.6/new"
+                    }
+                ]
+            }
+        ],
+    ],
 
     themeConfig:
 

docs/package.json

@@ -17,6 +17,7 @@
   "dependencies": {
     "@cmfcmf/docusaurus-search-local": "^0.11.0",
     "@docusaurus/core": "2.2.0",
+    "@docusaurus/plugin-client-redirects": "2.2.0",
     "@docusaurus/preset-classic": "2.2.0",
     "@mdx-js/react": "^1.6.22",
     "clsx": "^1.2.1",