style fix

SUPPORT.md

@@ -1,28 +1,28 @@
 How to get support for ADAM
 ===========================
 
-## Join the ADAM Gitter channel
+### Join the ADAM Gitter channel
 
 The primary mechanism for communication between ADAM developers and users is the [ADAM Gitter channel](https://gitter.im/bigdatagenomics/adam).
 
 
-## Join the ADAM IRC channel
+### Join the ADAM IRC channel
 
 If you prefer IRC, you can often find ADAM developers and users on [Freenode IRC](https://freenode.net/) in the #adamdev room.
 
 
-## Join the ADAM developers mailing list
+### Join the ADAM developers mailing list
 
 The ADAM project also hosts a developers mailing list, see http://bdgenomics.org/mail/ for details.
 
 
-## Search the Github issue tracker and pull requests
+### Search the Github issue tracker and pull requests
 
 Before creating a new issue, please search the [ADAM issue tracker](https://github.com/bigdatagenomics/adam/issues)
 and [ADAM open pull requests](https://github.com/bigdatagenomics/adam/pulls) on Github.
 
 
-## Create a new issue on Github
+### Create a new issue on Github
 
 If you have identified a new issue, please [create a new issue](https://github.com/bigdatagenomics/adam/issues/new)
 on the ADAM issue tracker on Github and prepare supporting material, such as scripts, test cases, and data that