[github] add issue and PR templates

Summary: As suggested here: https://help.github.com/articles/about-issue-and-pull-request-templates/

Reviewed By: mbouaziz

Differential Revision: D13987553

fbshipit-source-id: 09c645cbb

CONTRIBUTING.md

@@ -6,15 +6,6 @@
 If you encounter a problem when using infer or if you have any questions, please open a
 [GitHub issue](https://github.com/facebook/infer/issues/).
 
-- [ ] Check first if your issue is addressed in the [FAQ](http://fbinfer.com/support.html#troubleshooting).
-- [ ] Check also if your issue has already been [reported](https://github.com/facebook/infer/issues/).
-- [ ] Include the version of infer you are using (`infer --version`).
-- [ ] Include the full list of the commands you are running.
-- [ ] Include the full output of infer in a paste, for instance a [gist](https://gist.github.com/).
-- [ ] If possible, give a minimal example to reproduce your problem (for instance, some code where
-    infer reports incorrectly, together with the way you run infer to reproduce the incorrect
-    report).
-
 ## Hacking on the Code
 
 We welcome contributions via [pull requests on GitHub](https://github.com/facebook/infer/pulls).

ISSUE_TEMPLATE.md

@@ -0,0 +1,10 @@
+Please make sure your issue is not addressed in the [FAQ](http://fbinfer.com/support.html#troubleshooting).
+
+Please include the following information:
+- [ ] The version of infer from `infer --version`.
+- [ ] Your operating system and version, for example "Debian 9", "MacOS High Sierra", whether you are using Docker, etc.
+- [ ] Which command you ran, for example `infer -- make`.
+- [ ] The full output in a paste, for instance a [gist](https://gist.github.com/).
+- [ ] If possible, a minimal example to reproduce your problem (for instance, some code where
+    infer reports incorrectly, together with the way you run infer to reproduce the incorrect
+    report).

PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1 @@
+Please see [CONTRIBUTING.md](./CONTRIBUTING.md) for how to set up your development environment and run tests.