Merge pull request #194 from fauna/remove-beta-tags

[DOCS-4021] docs: Update README for Event Feeds GA

README.md

@@ -425,7 +425,7 @@ QueryOptions options = QueryOptions.builder()
 QuerySuccess result = client.query(query, String.class, options);
 ```
 
-## Event Feeds (beta)
+## Event Feeds
 
 The driver supports [Event Feeds](https://docs.fauna.com/fauna/current/learn/cdc/#event-feeds).