Update CHANGELOG for v1.6.3

***NO_CI***

Author: nfbot

CHANGELOG.md

@@ -2,7 +2,15 @@
 
 ## [**Changes available only in 'Preview' NuGet packages:**](https://github.com/nanoframework/lib-nanoFramework.System.Net/tree/HEAD)
 
-[Full Changelog](https://github.com/nanoframework/lib-nanoFramework.System.Net/compare/v1.6.3-preview.1...HEAD)
+[Full Changelog](https://github.com/nanoframework/lib-nanoFramework.System.Net/compare/v1.6.3-preview.3...HEAD)
+
+**Documentation and other chores:**
+
+- Update 2 NuGet dependencies [\#141](https://github.com/nanoframework/lib-nanoFramework.System.Net/pull/141)
+
+## [v1.6.3-preview.3](https://github.com/nanoframework/lib-nanoFramework.System.Net/tree/v1.6.3-preview.3) (2020-09-27)
+
+[Full Changelog](https://github.com/nanoframework/lib-nanoFramework.System.Net/compare/v1.6.3-preview.1...v1.6.3-preview.3)
 
 **Documentation and other chores:**
 
@@ -374,7 +382,6 @@
 **Documentation and other chores:**
 
 - Update 2 NuGet dependencies [\#82](https://github.com/nanoframework/lib-nanoFramework.System.Net/pull/82)
-- Bumps nanoFramework.Runtime.Events from 1.0.5-preview-008 to 1.0.5-preview-010 [\#69](https://github.com/nanoframework/lib-nanoFramework.System.Net/pull/69)
 
 ## [v1.1.1-preview.5](https://github.com/nanoframework/lib-nanoFramework.System.Net/tree/v1.1.1-preview.5) (2019-06-12)
 
@@ -437,6 +444,10 @@
 
 [Full Changelog](https://github.com/nanoframework/lib-nanoFramework.System.Net/compare/v1.0.6-preview-013...v1.0.6-preview-015)
 
+**Documentation and other chores:**
+
+- Bumps nanoFramework.Runtime.Events from 1.0.5-preview-008 to 1.0.5-preview-010 [\#69](https://github.com/nanoframework/lib-nanoFramework.System.Net/pull/69)
+
 ## [v1.0.6-preview-013](https://github.com/nanoframework/lib-nanoFramework.System.Net/tree/v1.0.6-preview-013) (2019-03-26)
 
 [Full Changelog](https://github.com/nanoframework/lib-nanoFramework.System.Net/compare/v1.0.6-preview-011...v1.0.6-preview-013)