added Integration category

- added "Integration" category
- added redirects

website/_redirects

@@ -91,6 +91,7 @@
 /download-tools                                      /docs/download-tools                              301!
 /docs/k8s/ambassador                                 /docs/k8s/connect/ambassador                      301!
 /docs/k8s/installation/overview                      /docs/k8s/installation/install                    301!
+/docs/partnerships                                   /docs/integrate/partnerships                      301!
 
 # CLI redirects
 /docs/commands                                       /commands                                         301!

website/data/docs-navigation.js

@@ -217,7 +217,21 @@ export default [
     category: 'architecture',
     content: ['anti-entropy', 'consensus', 'gossip', 'jepsen', 'coordinates'],
   },
-  'partnerships',
+  {
+    category: 'integrate',
+    name: 'Integrations',
+    content: [
+      'partnerships',
+      {
+        title: 'Ambassador Integration',
+        href: '/docs/k8s/connect/ambassador',
+      },
+      {
+        title: 'Proxy Integration',
+        href: '/docs/connect/proxies/integrate',
+      },
+    ],
+  },
   'download-tools',
   {
     category: 'upgrading',