Add deployment guide to mkdocs config

Author: ASankaran

documentation/docs/getting-started/deployment.md renamed to documentation/docs/getting-started/deployment-guide.md

@@ -11,6 +11,7 @@ nav:
     - 'License': 'about/License.md'
 - Getting Started:
     - 'Developer Guide': 'getting-started/developer-guide.md'
+    - 'Deployment Guide': 'getting-started/deployment-guide.md'
 - Reference:
     - Introduction: 'reference/introduction.md'
     - Services: