Add Matrix room to CONTRIBUTING and CHANGELOG

Author: NoraCodes

CHANGELOG.md

@@ -12,6 +12,7 @@ project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 - `enable()` and `disable()` methods on all controls
 - `RadioButtons` control for groups of radio buttons
 - `Combobox::selected()` method to retrieve the currently selected index of the combobox
+- Officially move communications to the Matrix room #rust-native-ui:matrix.nora.codes
 
 ### Changed
 

CONTRIBUTING.md

@@ -4,9 +4,11 @@ Thank you for considering contributing to this project!
 
 
 When contributing to this repository, please first discuss the change you wish to 
-make via issue, email, or any other method with the owners of this repository 
+make via Matrix, issue, email, or any other method with the owners of this repository
 before making a change. 
 
+Our Matrix room is at #rust-native-ui:matrix.nora.codes.
+
 Please note we have a code of conduct, please follow it in all your interactions 
 with the project.