chore: Move community governance into main Feast repo (feast-dev#3198)

* chore: Move community governance into main Feast repo. Update contributing docs

Signed-off-by: Danny Chiao <[email protected]>

* lint

Signed-off-by: Danny Chiao <[email protected]>

Signed-off-by: Danny Chiao <[email protected]>

Author: adchia

community/README.md

@@ -0,0 +1,8 @@
+# Feast Community
+
+Welcome to the Feast community!
+
+Please see the Community section on [Feast.dev](https://docs.feast.dev/) for more details on getting involved.
+
+- [Governance](governance.md): The Feast governance structure
+- [Maintainers](maintainers.md): List of members acting as maintainers