Update CHANGELOG for v1.0.6

***NO_CI***

Author: nfbot

CHANGELOG.md

@@ -2,7 +2,14 @@
 
 ## [**Changes available only in 'Preview' NuGet packages:**](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/tree/HEAD)
 
-[Full Changelog](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/compare/v1.0.5-preview-001...HEAD)
+[Full Changelog](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/compare/v1.0.6-preview.2...HEAD)
+
+**Documentation and other chores:**
+
+- Bumps nanoFramework.CoreLibrary from 1.2.4-preview.1 to 1.2.5-preview.1 [\#39](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/pull/39)
+
+## [v1.0.6-preview.2](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/tree/v1.0.6-preview.2) (2019-06-12)
+[Full Changelog](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/compare/v1.0.5-preview-001...v1.0.6-preview.2)
 
 **Documentation and other chores:**
 
@@ -88,13 +95,13 @@
 - merge back changes from Release 1.0.0 branch [\#14](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/pull/14)
 
 ## [v1.0.2-preview-036](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/tree/v1.0.2-preview-036) (2018-10-17)
-[Full Changelog](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/compare/v1.0.2-preview-032...v1.0.2-preview-036)
-
-## [v1.0.2-preview-032](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/tree/v1.0.2-preview-032) (2018-10-17)
-[Full Changelog](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/compare/v1.0.2-preview-033...v1.0.2-preview-032)
+[Full Changelog](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/compare/v1.0.2-preview-033...v1.0.2-preview-036)
 
 ## [v1.0.2-preview-033](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/tree/v1.0.2-preview-033) (2018-10-17)
-[Full Changelog](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/compare/v1.0.0...v1.0.2-preview-033)
+[Full Changelog](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/compare/v1.0.2-preview-032...v1.0.2-preview-033)
+
+## [v1.0.2-preview-032](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/tree/v1.0.2-preview-032) (2018-10-17)
+[Full Changelog](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/compare/v1.0.0...v1.0.2-preview-032)
 
 ## [v1.0.0](https://github.com/nanoframework/lib-nanoFramework.Networking.Sntp/tree/v1.0.0) (2018-10-17)
 **Implemented enhancements:**