Rewrite changelog

Author: xepozz

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 ## 3.1.0 under development
 
-- Chg #87: Add support for multiple exceptions rendering, fixed a bug with try/finally from #75 (@xepozz)
+- Chg #87: Add `CompositeException` to be able to render multiple exceptions, fixed a bug with try/finally from #75 (@xepozz)
 - Chg #75: Dispatch `ApplicationError` in `ErrorCatcher` (@xepozz)
 - Enh #82: Add `HeadersProvider` (@xepozz)