Create change log for v2.0.0-M1

Signed-off-by: Oliver Kopp <kopp.dev@gmail.com>

CHANGELOG.md

@@ -8,7 +8,7 @@ Here, the categories "Changed" for added and changed functionality,
 
 We refer to [GitHub issues](https://github.com/eclipse/winery/issues) by using `#NUM`.
 
-## Unreleased
+## [v2.0.0-M1] - 2017-07-03
 
 ### Changed
 
@@ -20,9 +20,17 @@ We refer to [GitHub issues](https://github.com/eclipse/winery/issues) by using `
 * Fix: If there are only XaaS packages without an infrastructure node defined the XaasPackager dialog  sends an undefined QName, got fixed by adding a check
 
 ### Fixed
-* Bounary definitions can be browsed for exported operations again
+
+* Boundary definitions can be browsed for exported operations again
 * Relationship Type -> Visual Appearance  "Arrow" tab can opened again
 * Boundary definitions -> interfaces
 	*	interfaces selection is properly reloaded if new interface is added
 	*	operations selection is properly reloaded if new operation is added
 
+## Initial Code Contribution - 2014-03-27
+
+This was the initial code contribution when handing over project governance to the Eclipse Software Foundation.
+See also [CQ 7916](https://dev.eclipse.org/ipzilla/show_bug.cgi?id=7916).
+
+[unreleased]: https://github.com/eclipse/winery/compare/v2.0.0-M1...master
+[v2.0.0-M1]: https://github.com/eclipse/winery/compare/initial-code-contribution...v2.0.0-M1