Update CHANGELOG with GitHub OAuth

Signed-off-by: David Pordomingo <[email protected]>

Author: dpordomingo

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## [Unreleased]
+
+### Added
+
+- Support for GitHub OAuth authorization ([#____](https://github.com/src-d/sourced-ui/issues/____))
+
 ## [v0.8.1](https://github.com/src-d/sourced-ui/releases/tag/v0.8.1) - 2019-10-28
 
 ### Fixed