Add integration test note to template

DarcyRaynerDD · DarcyRaynerDD · commit e815488d04d5 · 2020-03-09T11:37:34.000-04:00
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
@@ -9,3 +9,7 @@ What inspired you to submit this pull request?
 ### Additional Notes
 
 Anything else we should know when reviewing?
+
+### Checklist
+
+[ ] Member of the datadog team has run integration tests
