Merge pull request patternfly#426 from andresgalante/PR-template

PR template

Author: priley86

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,18 @@
+## Description
+Write a few sentences describing the overall goals of the pull request's commits.
+
+(optional) Include related PRs or Issues
+
+(optional) Include a list of changes:
+
+* Change 01
+* Change 02
+* Change 03
+
+## Link to rawgit and/or image
+
+For example: Here is a [link to Alerts on rawgit](https://rawgit.com/patternfly/patternfly/master-dist/dist/tests/alerts.html)
+
+This is an image:
+
+![Image description](http://placehold.it/350x150)