haskell-xmpp-2.0.0: Changelog.md

# Changelog for haskell-xmpp

## Version 2.0.0 - 15.10.2020
Riskbook took over maintainership

+ Use HaXML
+ Add Missing FlexibleContexts
+ Fix Duplicate show instances
+ Add integration tests
+ Add basic Ejabberd api support
  This is to allow basic integration tests.
+ Add simple integration tests
+ Add show instance for SomeStanza
+ More flexible show instance for Stanza

## Version 1.0.2 - 13.12.2019

Intial release