Update .gitlab/issue_templates/Bug.md

Author: Thom

.gitlab/issue_templates/Bug.md

@@ -1,16 +1,25 @@
+<!-- Before creating a bug report, please:
+- Read the contribution guidelines: https://git.ispconfig.org/ispconfig/ispconfig3/-/blob/develop/CONTRIBUTING.md
+- Do not ask support questions here. If you are unsure if your problem is a bug, post a thread on the forum: https://www.howtoforge.com/community/#ispconfig-3.23
+- Make sure to remove any content from the description that you did not add. For example, if there are no related log entries, remove the whole "Related log entries" part.
+-->
+
 ## short description
 What is happening and what is wrong with that?
 
+## steps to reproduce
+1. [First step]
+2. [Second step]
+3. [and so on...]
+
 ## correct behaviour
 What should happen instead?
 
 ## environment
-Server OS: (debian/ubuntu/centos/...)  
-Server OS version: (wheezy/trusty/centos6/...)
-ISPConfig version: (3.0.5.4/3.1.5/3.1dev/...)
+Server OS + version: (Debian 10/Ubuntu 20.04 /CentOS 8/...)  
+ISPConfig version: (3.1.15p3/3.2.3/3.2dev/...)
 _you can use `grep 'ISPC_APP_VERSION' /usr/local/ispconfig/server/lib/config.inc.php` to get it from the command line_
-
-If it might be related to the problem  
+Software version of the related software:
 ```
 insert the output of `nginx -v` or `apachectl -v` here
 ```
@@ -24,18 +33,15 @@ if you want to post code snippets, please use
 ```  
 your code  
 ```
-or attach a code file. Best is to create a merge request of course.  
+or attach a code file. Best is to create a merge request of course.
 
 ## references
-if you know of related bugs or feature requests, please reference them by using `#<bugnumber>`, e. g. #123  
-if you have done a merge request already, please reference it by using `!<mergenumber>`, e. g. !12  
+if you know of related bugs or feature requests, please reference them by using `#<issuenumber>`, e. g. #6105
+if you have done a merge request already, please reference it by using `!<mergenumber>`, e. g. !1444 
 if you know of a forum post on howtoforge.com that deals with this topic, just add the link to the forum topic here
 
 ## screenshots
 optional, of course.  
 Add screenshots of the problem by clicking "Attach a file" on the bottom right.
 
-## log entries
-```
-apache / nginx error.log lines (if related)
-```
+## Related log entries