Community Projects page (#278)

This adds a page that calls out useful and interesting community
projects that integrate with Actual. There are only a few that I know of
right now, but we can add any later that come up.

docs-sidebar.js

@@ -288,6 +288,7 @@ const sidebars = {
             'troubleshooting/edge-browser',
           ],
         },
+        'community-repos',
       ],
     },
   ],

docs/community-repos.md

@@ -0,0 +1,15 @@
+# Community Projects
+
+The following community projects are not maintained by the Actual Budget project, but integrate with Actual Budget.  They are for special use cases, or for developing features that have not yet been integrated into Actual.
+
+## Bank Importers
+The following are implementations of bank syncing using the Actual API.  See the respective repository for instructions on use.
+* **Plaid bank sync** - https://github.com/youngcw/actualplaid
+* **SimpleFIN bank sync** - https://github.com/duplaja/actual-simplefin-sync/
+
+## Budget Migration
+Actual currently has official support for migrating budgets from YNAB4 and nYNAB.  The following are available for migrating from other budget apps
+* **Mint.com** - https://github.com/youngcw/actual_mint_importer
+
+## Others
+* **Local REST api** - https://github.com/jhonderson/actual-http-api