Add contact link to the sidebar

Author: Andrei Jiroh Eugenio Halili

src/config/sidebar.yml

@@ -1,5 +1,7 @@
 - label: 'Home'
   link: '/'
+- label: Contact maintainers
+  link: '/contact'
 
 - label: Maintainers' Handbook
   items:
@@ -14,4 +16,4 @@
 - label: Community
   items:
     - label: code-server Community at Slack
-      link: 'https://community.coder.com'
+      link: 'https://community.coder.com'