chore: update github templates

Co-Authored-by: Pascal Repond <pascal.repond@rero.ch>

.github/ISSUE_TEMPLATE.md

@@ -5,29 +5,8 @@ title: ''
 labels: ''
 assignees: ''
 ---
+**If your issue concerns a RERO ILS functionality, please open it on the
+rero-ils project: https://github.com/rero/rero-ils/issues**
 
-**Describe the issue**
-A clear and concise description of what the issue is.
-
-**To Reproduce**
-Steps to reproduce the behavior:
-1. Go to '…'
-1. Log in as '…'
-1. Click on '…'
-1. Scroll down to '…'
-1. See error
-
-**Expected behavior**
-A clear and concise description of what you expected to happen.
-
-**Software version**
-Tell us which version you're using:
-
-  * from which server URL do you come from? ils.test or ilsdev?
-  * checks the version on homepage. Do you see the version as 0.5.0 or a hash as 2493ca6?
-
-**Screenshots**
-If applicable, add screenshots to help explain your problem.
-
-**Additional context**
-Add any other context about the problem here.
+**If it concerns SONAR, please open it on the
+sonar project project: https://github.com/rero/sonar/issues**