Remove beta warning

Author: danez

README.md

@@ -1,18 +1,19 @@
 # react-docgen
 
-[`react-docgen`](./packages/react-docgen/) is a highly customizable library that extracts information from
-[React](https://reactjs.org/) components and returns this information in a
-structured machine readable format from which documentations can be generated.
+[`react-docgen`](./packages/react-docgen/) is a highly customizable library that
+extracts information from [React](https://reactjs.org/) components and returns
+this information in a structured machine readable format from which
+documentations can be generated.
 
-[`@react-docgen/cli`](./packages/react-docgen-cli/) is a cli wrapper around the library allowing using `react-docgen` on the command line.
+[`@react-docgen/cli`](./packages/react-docgen-cli/) is a cli wrapper around the
+library allowing using `react-docgen` on the command line.
 
 ## Documentation
 
-For version 5.x please checkout the [README.md on the 5.x branch](https://github.com/reactjs/react-docgen/blob/5.x/README.md)
+For version 5.x please checkout the
+[README.md on the 5.x branch](https://github.com/reactjs/react-docgen/blob/5.x/README.md)
 
-For version 6.x please checkout [react-docgen.dev](https://react-docgen.dev)
-
-Version 6 is currently only available as alpha version (latest being `6.0.0-beta.5`)
+For version 6.x please visit [react-docgen.dev](https://react-docgen.dev)
 
 ## License