Add a Pull Request template

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,9 @@
+### Description
+
+
+
+### HTML Preview
+
+*Replace [GITHUB_USERNAME] with your GitHub username and [BRANCH] with the branch name.*
+
+http://htmlpreview.github.io/?https://github.com/[GITHUB_USERNAME]/privacytools.io/blob/[BRANCH]/index.html