Update issue templates (#511)

Add [REQUIRED] tags and better description.

.github/ISSUE_TEMPLATE/bug-report.md

@@ -1,13 +1,15 @@
 ---
 name: Bug report
-about: Create a report to help us improve
+about: 'Create a report to help us improve, do not ignore the [REQUIRED] sections.
+  We understand this can be frustrating, take your time and relax. We are usually
+  pretty quick to answer. :) '
 title: ''
 labels: ''
 assignees: ''
 
 ---
 
-### Detailed description of the problem
+### Detailed description of the problem [REQUIRED]
 *A clear and concise description of what the bug is.*
 
 ### Steps to reproduce the issue
@@ -20,7 +22,7 @@ assignees: ''
 **Screenshots**
 *If applicable, add screenshots to help explain your problem.*
 
-### Output of the diagnostics
+### Output of the diagnostics  [REQUIRED]
 *(Settings => Diagnostics or https://example.com/Diagnostics )*
 
 ### Browser and system