add questions issue template

.github/ISSUE_TEMPLATE/question.md

@@ -0,0 +1,24 @@
+---
+name: Question
+about: Ask a question about the polars library
+title: ''
+labels: ''
+assignees: ''
+---
+
+#### Please use StackOverflow 
+
+Is your question related to syntax or how you could do something with the polars library?
+Please use [stackoverflow](https://stackoverflow.com/) and one of the following tags:
+
+* [python-polars](https://stackoverflow.com/questions/tagged/python-polars)
+* [rust-polars](https://stackoverflow.com/questions/tagged/rust-polars)
+
+This allows us to create high quality answers that remain updated and will save us from
+answering the same questions over and over again.
+
+If a question is not yet on stackoverflow, please create a new question and post the link here, so we are noted.
+
+#### Other
+
+If your question doesn't fit stackoverflow, feel fry to ask here. :)