README.md in thinreports-0.11.0 vs README.md in thinreports-0.12.0

@@ -13,14 +13,16 @@
 
   * [Installation Guide](http://www.thinreports.org/documentation/getting-started/installation.html)
   * [Quick Start Guide](http://www.thinreports.org/documentation/getting-started/quickstart.html)
   * [Examples](https://github.com/thinreports/thinreports-examples)
   * [Changelog](https://github.com/thinreports/thinreports-generator/blob/master/CHANGELOG.md)
-  * [Discussion Group](https://groups.google.com/forum/#!forum/thinreports)
+  * [Discussion Group (GitHub Discussions)](https://github.com/thinreports/thinreports/discussions)
+  * [Discussion Group (Google Groups)](https://groups.google.com/forum/#!forum/thinreports)
 
 ## Supported versions
 
-  * Ruby 2.4, 2.5, 2.6, 2.7
+  * Ruby 2.5, 2.6, 2.7, 3.0
+  * Prawn 2.2, 2.3, 2.4
   * JRuby 9.2
 
 ## Quick Reference
 
 **NOTE:** You need to create a layout file `.tlf` using [Thinreports Editor](http://www.thinreports.org/features/editor/).