Update CHANGELOG.md

Author: josesimoes

CHANGELOG.md

@@ -1,8 +1,7 @@
 # Change Log
 
-## [**Changes available only in 'Preview' NuGet packages:**](https://github.com/nanoframework/lib-CoreLibrary/tree/HEAD)
-
-[Full Changelog](https://github.com/nanoframework/lib-CoreLibrary/compare/v1.0.0-preview028...HEAD)
+## [v1.0.2](https://github.com/nanoframework/lib-CoreLibrary/tree/v1.0.2) (2017-08-31)
+[Full Changelog](https://github.com/nanoframework/lib-CoreLibrary/compare/v1.0.0-preview027...v1.0.2)
 
 **Implemented enhancements:**
 
@@ -106,4 +105,4 @@
 ## [v1.0.0-preview005](https://github.com/nanoframework/lib-CoreLibrary/tree/v1.0.0-preview005) (2017-04-28)
 
 
-\* *This Change Log was automatically generated by [github_changelog_generator](https://github.com/skywinder/Github-Changelog-Generator)*
+\* *This Change Log was automatically generated by [github_changelog_generator](https://github.com/skywinder/Github-Changelog-Generator)*