Added functions-go to client libs (#9206)

README.md

@@ -134,7 +134,7 @@ Our approach for client libraries is modular. Each sub-library is a standalone i
     <td>-</td>
     <td>-</td>
     <td><a href="https://github.com/supabase-community/storage-go" target="_blank" rel="noopener noreferrer">storage-go</a></td>
-    <td>-</td>
+    <td><a href="https://github.com/supabase-community/functions-go" target="_blank" rel="noopener noreferrer">functions-go</a></td>
   </tr>
   <tr>
     <td>Java</td>