add base IB from W3A docs

Author: yashovardhan

.gitignore

@@ -20,4 +20,5 @@
 npm-debug.log*
 .vercel
 .envrc
-.env
+.env
+.integrationBuilderCache

docusaurus.config.js

@@ -212,6 +212,7 @@ const config = {
         containerId: 'GTM-5FGPLC2Q',
       },
     ],
+    ['./src/plugins/docusaurus-plugin-virtual-files', { rootDir: '.integrationBuilderCache' }],
   ],
   clientModules: [require.resolve('./src/client/scroll-fix.js')],
   themeConfig:
@@ -309,6 +310,11 @@ const config = {
               },
             ],
           },
+          {
+            label: 'Quick Start',
+            to: '/quick-start',
+            position: 'left',
+          },
           {
             type: 'dropdown',
             label: 'Developer tools',