Pull request #598: Updates the root folder's README with updated links.

Merge in MC/connect from update-root-folder-readme to development

* commit '0cd908ef8745d97e0f1aafdd0939d061710f5dbd':
  Updates the root folder's README with updated links.

README.md

@@ -13,14 +13,8 @@
 <a name="useful-links"></a>
 ## 1. Useful Links
 - [Downloads](https://github.com/nextgenhealthcare/connect/releases) 
-- [User Guide](https://www.nextgen.com/-/media/Files/nextgen-connect/nextgen-connect-310-user-guide.pdf)
-- [Wiki](https://www.mirthcorp.com/community/wiki/display/mirth/Home)
-  - [System requirements](https://www.mirthcorp.com/community/wiki/display/mirth/System+Requirements)
-  - [FAQ](https://www.mirthcorp.com/community/wiki/display/mirth/Mirth+Connect+FAQ)
-  - [What's New in NextGen Connect](https://github.com/nextgenhealthcare/connect/wiki/3.10.0---What's-New)
-  - [Developer Guide](https://www.mirthcorp.com/community/wiki/pages/viewpage.action?pageId=11174703)
-  - [Examples and Tutorials](https://www.mirthcorp.com/community/wiki/display/mirth/Examples+and+Tutorials)
-  - [FHIR Extension Guide](https://www.mirthcorp.com/community/wiki/display/mirth/User+Guide)
+- [User Guide](https://docs.nextgen.com/)
+- [Wiki](https://github.com/nextgenhealthcare/connect/wiki)
 - [Forums](https://forums.mirthproject.io/)
 - [Slack Channel](https://mirthconnect.slack.com/) 
   - [Slack Registration](https://mirthconnect.herokuapp.com)