Merge pull request #6 from arduino/pr-template

Create pull request template

Author: seaxwi

.github/pull_request_template.md

@@ -0,0 +1,7 @@
+**Changes proposed in this pull request**
+- Example 1
+- Example 2
+
+**Please check**
+- [ ] This pull request changes an article title
+- [ ] This pull request removes an article