Add github template

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,16 @@
+| Q             | A
+| ------------- | ---
+| Device?       | iPhone/iPad
+| Device Os version    | 9.0/10.0
+| App Version   | 2.0
+| Wallabag server version | 2.0
+
+
+
+### Steps to reproduce/test case
+
+Please provide necessary steps for reproduction of this issue, or better the
+reduced test case.
+
+### Improvement
+If your issue involves a suggestion for improvement or a request to add functionality. You can delete this template and describe your request