Got CHANGELOG ready for release (#73)

Author: rstaib

CHANGELOG.md

@@ -8,6 +8,8 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## [2.0.0] - 2019-02-03
+
 ### Added
 
 - Non-generic interface for DataLoader
@@ -137,7 +139,8 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 - Updated readme.
 
-[unreleased]: https://github.com/ChilliCream/greendonut/compare/1.1.0...HEAD
+[unreleased]: https://github.com/ChilliCream/greendonut/compare/2.0.0...HEAD
+[2.0.0]: https://github.com/ChilliCream/greendonut/compare/1.1.0...2.0.0
 [1.1.0]: https://github.com/ChilliCream/greendonut/compare/1.0.3...1.1.0
 [1.0.3]: https://github.com/ChilliCream/greendonut/compare/1.0.2...1.0.3
 [1.0.2]: https://github.com/ChilliCream/greendonut/compare/1.0.1...1.0.2