Improve github templates with <!-- comments -->

.github/ISSUE_TEMPLATE/bug_report.md

@@ -8,31 +8,31 @@ assignees: ''
 ---
 
 **Describe the bug**
-A clear and concise description of what the bug is.
+<!-- A clear and concise description of what the bug is. -->
 
 **To Reproduce**
 Steps to reproduce the behavior:
-1. Go to '...'
-2. Click on '....'
-3. Scroll down to '....'
-4. See error
+1. <!-- Go to '...' -->
+2. <!-- Click on '....' -->
+3. <!-- Scroll down to '....' -->
+4. <!-- See error -->
 
 **Expected behavior**
-A clear and concise description of what you expected to happen.
+<!-- A clear and concise description of what you expected to happen. -->
 
 **Screenshots**
-If applicable, add screenshots to help explain your problem.
+<!-- If applicable, add screenshots to help explain your problem. -->
 
 **Desktop (please complete the following information):**
- - OS: [e.g. iOS]
- - Browser [e.g. chrome, safari]
- - Version [e.g. 22]
+ - OS: <!-- e.g. iOS -->
+ - Browser <!-- e.g. chrome, safari -->
+ - Version <!-- e.g. 22 -->
 
 **Smartphone (please complete the following information):**
- - Device: [e.g. iPhone6]
- - OS: [e.g. iOS8.1]
- - Browser [e.g. stock browser, safari]
- - Version [e.g. 22]
+ - Device: <!-- e.g. iPhone6 -->
+ - OS: <!-- e.g. iOS8.1 -->
+ - Browser <!-- e.g. stock browser, safari -->
+ - Version <!-- e.g. 22 -->
 
 **Additional context**
-Add any other context about the problem here.
+<!-- Add any other context about the problem here. -->

.github/ISSUE_TEMPLATE/feature_request.md

@@ -8,13 +8,13 @@ assignees: ''
 ---
 
 **Is your feature request related to a problem? Please describe.**
-A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+<!-- A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] -->
 
 **Describe the solution you'd like**
-A clear and concise description of what you want to happen.
+<!-- A clear and concise description of what you want to happen. -->
 
 **Describe alternatives you've considered**
-A clear and concise description of any alternative solutions or features you've considered.
+<!-- A clear and concise description of any alternative solutions or features you've considered. -->
 
 **Additional context**
-Add any other context or screenshots about the feature request here.
+<!-- Add any other context or screenshots about the feature request here. -->

.github/pull_request_template.md

@@ -1 +1,3 @@
+<!--
 Please read the "Making a PR" section of [`CONTRIBUTING.md`](https://github.com/emilk/egui/blob/master/CONTRIBUTING.md) before opening a Pull Request!
+-->