Added icon updates

RELEASE-NOTES.md

@@ -3,7 +3,8 @@
 ### Version 2.3.1 - Feb 23, 2018
 
 **Bugs**
-- **Icons** - Fixes some icons that were incorrectly named. **Thanks hammy2899** [#6181](https://github.com/Semantic-Org/Semantic-UI/pull/6181) [#6180](https://github.com/Semantic-Org/Semantic-UI/pull/6180) [#6176](https://github.com/Semantic-Org/Semantic-UI/pull/6176) [#6175](https://github.com/Semantic-Org/Semantic-UI/pull/6175)
+- **Icons** - Reported FontAwesome 5 with a much higher accuracy which fixes all reported issues **Thanks hammy2899** [#6181](https://github.com/Semantic-Org/Semantic-UI/pull/6181) [#6180](https://github.com/Semantic-Org/Semantic-UI/pull/6180) [#6176](https://github.com/Semantic-Org/Semantic-UI/pull/6176) [#6175](https://github.com/Semantic-Org/Semantic-UI/pull/6175)
+- **Icons** - Added ability to choose whether solid, outline and brand icons should be included in your theme via the `@importSolidIcons`, `importRegularIcons` and `@importBrandIcons` variables **Thanks hammy2899**  
 - **Icons** - Increased specifity on `fitted icon` to fix compatibility with other components [#6125](https://github.com/Semantic-Org/Semantic-UI/issues/6125)
 
 **Docs**