Improve issue template

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,33 @@
+The issue tracker is a tool to address bugs in Jinja itself.
+Please use the #pocoo IRC channel on freenode or Stack Overflow for general
+questions about using Jinja or issues not related to Jinja.
+
+If you'd like to report a bug in Jinja, fill out the template below and provide
+any extra information that may be useful / related to your problem.
+Ideally, you create an [MCVE](http://stackoverflow.com/help/mcve) reproducing
+the problem before opening an issue to ensure it's not caused by something in
+your code.
+
+---
+
+## Expected Behavior
+Tell us what should happen
+
+## Actual Behavior
+Tell us what happens instead
+
+## Template Code
+```jinja
+Paste the template code (ideally a minimal example) that causes the issue
+
+```
+
+## Full Traceback
+```pytb
+Paste the full traceback in case there is an exception
+
+```
+
+## Your Environment
+* Python version:
+* Jinja version:

.github/ISSUE_TEMPLATE.rst

@@ -1,2 +0,0 @@
-The issue tracker is a tool to address bugs.
-Please use the #pocoo IRC channel on freenode or Stack Overflow for questions.