Add template for whitelist requests

ISSUE_TEMPLATE/whitelist_template.md

@@ -0,0 +1,34 @@
+# Whitelist Request
+- Name of the game to be whitelisted:
+- Steam AppID of the game: 
+
+## System Information
+- Driver-/(LLVM-)/kernel- version/GPU: <!-- e.g. Mesa 18.2/7.0.0/4.17/RX 580 -->
+- Link to full system information report as [Gist](https://gist.github.com/):
+- Proton version:
+
+## I confirm:
+- [ ] that pressing the `Play` button in the Steam client is sufficient.
+- [ ] that [runtime config options](https://github.com/ValveSoftware/Proton#runtime-config-options)
+      are necessary to run the game.
+- [ ] that no workarounds other than the mentioned ones are necessary.
+
+## Issues
+- [ ] I haven't experienced any issues.
+- [ ] There are no issues left open for this game.
+- [ ] Although I consider the gaming experience equal to Windows there are
+      remaining issues:
+
+<!--
+1. You can find the Steam AppID in the URL of the shop page of the game.
+   e.g. for `The Witcher 3: Wild Hunt` the AppID is `292030`.
+2. You can find your driver and Linux version, as well as your graphics
+   processor's name in the system information report of Steam.
+3. You can retrieve a full system information report by clicking
+   `Help` > `System Information` in the Steam client on your machine.
+4. Please copy it to your clipboard by pressing `Ctrl+A` and then `Ctrl+C`.
+   Then paste it in a [Gist](https://gist.github.com/) and post the link in
+   this issue to prevent chaos by too much info in one place.
+5. Please search for open issues and pull requests by the name of the game and
+   find out whether they are relevant and should be referenced above.
+-->