Update issue_template.md

issue_template.md

@@ -39,6 +39,7 @@ logs.
 ```Template for output < 10 lines```
 
 1. Output of `owncloud --logwindow` or `owncloud --logfile log.txt`
+(On Windows using `cmd.exe`, you might need to first `cd` into the ownCloud directory)
 
 2. Web server error log: