modified:   docs/gettingstarted/mysql-example.rst
    changes title and intro text to reference the use of environment variables rather than deploying MySQL
	modified:   docs/gettingstarted/mysql-example.rst
	modified:   docs/gettingstarted/mysql-example.rst
Merge pull request #704 from ClusterHQ/mysql-doc-intro-691

Modify MySQL example doc's title and intro