Updated release notes

Peter Slump · Peter Slump · commit f341c460cefb · 2018-11-27T22:43:34.000+01:00
diff --git a/README.rst b/README.rst
@@ -84,6 +84,8 @@ Release Notes
 
 **unreleased**
 
+* Added async client based on aiohttp (thanks to @nkoshell)
+
 **v0.1.4**
 
 * Add support for password grant (thanks to @scranen)
