v2.3: docs: move pages from contributing section (backport of #7255) (#7267)

docs: move pages from contributing section (#7255)

These pages were previously elsewhere

(cherry picked from commit 704f3f7)

Co-authored-by: Yihau Chen <[email protected]>

Author: mergify[bot]

docs/docusaurus.config.js

@@ -45,11 +45,6 @@ module.exports = {
           label: "Operating a Validator",
           position: "left",
         },
-        {
-          to: "contributing",
-          label: "Contributing to Agave",
-          position: "left",
-        },
         {
           label: "More",
           position: "left",

docs/sidebars.js

@@ -86,17 +86,6 @@ module.exports = {
         },
       ],
     },
-    {
-      type: "category",
-      label: "Contributing to Agave",
-      // collapsed: false,
-      items: [
-        {
-          type: "autogenerated",
-          dirName: "contributing",
-        },
-      ],
-    },
   ],
   proposalsSidebar: [
     {