Update README.md

README.md

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 This repository contains samples that take advantage of the z/OS Client Web Enablement Toolkit functionality to issue various REST API requests and parse the corresponding JSON content.
 
+<h2>Samples</h2>
+
 [**Example-GeoServices**](https://github.com/IBM/zOS-Client-Web-Enablement-Toolkit/tree/master/Example-GeoServices)
 
 This sample demonstrates how to use the toolkit to obtain the distance between two cities using the Geo Services REST API.
@@ -20,4 +22,10 @@ This sample demonstrates how to use the toolkit in Cobol to obtain the informati
 
 [**Example-Slack**](Example-Slack/)
 
-This sample demonstrates how to use the z/OS Client Web Enablement Toolkit to post an update to a Slack channel.
+This sample demonstrates how to use the z/OS Client Web Enablement Toolkit to post an update to a Slack channel.
+
+
+
+<h2>Useful Links</h2>
+
+[z/OS client web enablement documentation](https://www.ibm.com/docs/en/zos/2.5.0?topic=languages-zos-client-web-enablement-toolkit)