Add issue template

ISSUE_TEMPLATE.md

@@ -0,0 +1,44 @@
+<!--
+Thanks for reporting issues back to us!
+This is the bug tracker for the WebExtension. Find passman at https://github.com/nextcloud/passman
+
+
+To make it possible for us to help you please fill out below information carefully.
+--> 
+### Steps to reproduce
+1.
+2.
+3.
+
+### Expected behaviour
+Tell us what should happen
+
+### Actual behaviour
+Tell us what happens instead
+
+### Configuration
+**Operating system**:   
+
+   
+**Browser**:   
+   
+   
+**Extensions that might cause interference**:   
+   
+   
+**Passman version**:    
+       
+       
+**Nextcloud version**:
+   
+#### Browser log
+<details>
+<summary>Browser log</summary>
+```
+Insert your browser log here, this could for example include:
+
+a) The javascript console log
+b) The network log
+c) ...
+```
+</details>