DHFPROD-2693:Linking to new docs site in Javadocs

Author: SameeraPriyathamTadikonda

marklogic-data-hub/src/main/resources/overview.html

@@ -5,7 +5,7 @@ <h2>MarkLogic Data Hub</h2>
 <p>Entry point to DHF Java API is package {@link com.marklogic.hub}</p>
 <h3>Before Starting</h3>
 <p>
-  Read through our <a target="_blank" href="https://marklogic.github.io/marklogic-data-hub/">Main Documentation page</a>.
+  Read through our <a target="_blank" href="http://docs.marklogic.com/datahub">Main Documentation page</a>.
 </p>
 </body>
 </html>