updated introduction content

added some more details

doc/source/internal/helpcenter_training/introduction.rst

@@ -3,7 +3,8 @@ Introduction
 ============
 
 The HelpCenter3.0 is Open Telekom Cloud product developed by Ecosystem squad introducing new approach in the documentation management.
-It aims to bring the benefits of the gitops approach such as:
+In order to improve documentation exchange between delivery partners and the TSI a new documentation platform and processes 
+based on GitOps are introduced with following benefits:
 
 -  Openness
 -  Transparency
@@ -11,6 +12,11 @@ It aims to bring the benefits of the gitops approach such as:
 -  Full control during the documentation lifecycle
 -  Documentation as a source code
 
+The target of the new platform is to store and maintain all documents in Git. This provides benefits of precise identification of changes
+and preventing undesired versions to be published. The process is heavily streamlined. Once, those changes are approved and merged, 
+the connected pipelines ensure that the documentation is published fully automated which eases the document auditing and enables users
+to see the complete history of changes tracked by git itself.
+
 .. figure:: /_static/images/helpcenter_gitops.png
 
 Solution is completely open source based and HLD is described at https://docs.otc-service.com/system-config/docsportal.html