Update issue templates to clarify/improve intended usage

Make boilerplate text comments, so they are automatically removed
on submitting.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -7,32 +7,46 @@ assignees: ''
 
 ---
 
-NOTE: If this is a _discussion starter_, you need any _installation help_ or have a _question_ on how to accomplish something,
+<!--
+NOTE: If this is a _discussion starter_, you need any _installation help, or have a _question_ on how to accomplish something,
 rather post at [our discussion channel](https://www.domjudge.org/chat) or send an email to our
 [DOMjudge-devel mailinglist](https://www.domjudge.org/mailman/postorius/lists/domjudge-devel.domjudge.org/)
 instead of filing an issue here.
+-->
 
 ### Description of the problem
-> Replace this line with a short description.
+<!--
+Replace this line with a short description.
+-->
 
 ### Your environment
-> Include details about your installation here.
-> - DOMjudge version (e.g. 7.0.0 or a github commit hash)
-> - Operating system / Linux distribution and version (e.g. Ubuntu 18.04)
-> - Webserver (e.g. Apache or nginx)
+<!--
+Include details about your installation here.
+- DOMjudge version (e.g. 7.0.0 or a github commit hash)
+- Operating system / Linux distribution and version (e.g. Ubuntu 18.04)
+- Webserver (e.g. Apache or nginx)
+-->
 
 ### Steps to reproduce
-> Replace this with a description how we can reproduce your bug.
-> - Step 1
-> - Step 2
-> - Step 3
+<!--
+Replace this with a description how we can reproduce your bug.
+1. Step 1
+1. Step 2
+1. Step 3
+-->
 
 ### Expected behaviour
-> Replace this line with what you would expect to happen.
+<!--
+Replace this line with what you would expect to happen.
+-->
 
 ### Actual behaviour
-> Replace this line with what happens instead.
+<!--
+Replace this line with what happens instead.
+-->
 
 ### Any other information that you want to share?
-> Please include webserver, symfony and judgedaemon log snippets here as appropriate.
-> Screenshots may help in case of UI bugs.
+<!--
+Please include webserver, symfony and judgedaemon log snippets here as appropriate.
+Screenshots may help in case of UI bugs.
+-->

.github/ISSUE_TEMPLATE/feature_request.md

@@ -7,25 +7,36 @@ assignees: ''
 
 ---
 
-NOTE: If this is a _discussion starter_, you need any _installation help_ or have a _question_ on how to accomplish something,
+<!--
+NOTE: If this is a _discussion starter_, you need any _installation help, or have a _question_ on how to accomplish something,
 rather post at [our discussion channel](https://www.domjudge.org/chat) or send an email to our
 [DOMjudge-devel mailinglist](https://www.domjudge.org/mailman/postorius/lists/domjudge-devel.domjudge.org/).
 
 Thank you for suggesting ways to improve DOMjudge. Before you file a feature
 request, it might be useful to discuss it first via the chat or mailing list
 linked above. We can then assess together whether there is
 not already a way to accomplish your goal with DOMjudge currently.
+-->
 
 ### Description of the enhancement request
-> Replace this line with a short description.
+<!--
+Replace this line with a short description.
+-->
 
 ### The goal you want to achieve
-> Please elaborate on the (larger, higher level) goal you want to achieve with this enhancement, so we have a good understanding what this feature would be useful for and how it fits in DOMjudge as a whole.
+<!--
+Please elaborate on the (larger, higher level) goal you want to achieve with this enhancement, so we have a good understanding what this feature would be useful for and how it fits in DOMjudge as a whole.
+-->
 
 ### Expected behaviour
-> Replace this line with what you would expect to happen.
-> Please describe the workflow how you want this feature to work with expected start URL
-> - Step 1
-> - Step 2
+<!--
+Replace this line with what you would expect to happen.
+Please describe the workflow how you want this feature to work with expected start URL
+1. Step 1
+2. Step 2
+-->
+
 ### Any other information that you want to share?
-> Screenshots may help in case of UI enhancements with annotated drawings.
+<!--
+Screenshots may help in case of UI enhancements with annotated drawings.
+-->