added demo links for zip library

Author: dessyordanova

libraries/radziplibrary/features/compress-stream.md

@@ -154,3 +154,4 @@ CompressedStream derives from the Stream class and therefore it supports all its
 
  * [Protect ZipArchive]({%slug radziplibrary-protect-ziparchive%})
  * [Compression Settings]({%slug radziplibrary-compression-settings%})
+ * [ZipLibrary Stream Compression Demo](https://demos.telerik.com/document-processing/ziplibrary/compress_stream)

libraries/radziplibrary/features/protect-ziparchive.md

@@ -141,3 +141,4 @@ In order to open a password-protected __ZipArchive__, you need to pass a __Defau
 
  * [Getting Started]({%slug radziplibrary-gettingstarted%})
  * [Update ZipArchive]({%slug radziplibrary-update-ziparchive%})
+ * [ZipLibrary Archive Protection Demo](https://demos.telerik.com/document-processing/ziplibrary/archive_protection)

libraries/radziplibrary/gettingstarted.md

@@ -153,3 +153,4 @@ For more complete examples head to the [Developer Focused Examples]({%slug radzi
 
 * [First Steps in Using Telerik Document Processing]({%slug getting-started-first-steps%})
 * [Update ZipArchive]({%slug radziplibrary-update-ziparchive%})
+* [ZipLibrary Basic Usage Demo](https://demos.telerik.com/document-processing/ziplibrary)

libraries/radziplibrary/overview.md

@@ -33,3 +33,11 @@ This is a list with short descriptions of the top-of-the-line features of Teleri
 >noteIf you still don't have **Telerik Document Processing installed**, check the **[First Steps]({%slug getting-started-first-steps%})** topic to learn how you can obtain the packages through the different suites. 
 
 >noteFor details on the **usage of the library**, go to the **[Getting Started]({%slug radziplibrary-gettingstarted%})** article.
+
+## Online Demos
+
+|Demo|Description|
+|----|----|
+|[ZipLibrary Basic Usage](https://demos.telerik.com/document-processing/ziplibrary)|The Zip library allows your application to read all the data from a ZIP file simultaneously and display the information about the compressed files in a Grid.|
+|[ZipLibrary Stream Compression](https://demos.telerik.com/document-processing/ziplibrary/compress_stream)|The example demonstrates how to easily compress streams with the preferred compression level.|
+|[ZipLibrary Archive Protection](https://demos.telerik.com/document-processing/ziplibrary/archive_protection)|The ZipLibrary lets you password-protect and open ZIP archive with a password.|