chore(bug_report): put instructions in comment (argoproj#8283)

Users reporting a bug will see instructions, can keep it, it will be ignored in final issue

Signed-off-by: Guilhem Lettron <[email protected]>

.github/ISSUE_TEMPLATE/bug_report.md

@@ -6,7 +6,7 @@ labels: 'bug'
 assignees: ''
 ---
 
-If you are trying to resolve an environment-specific issue or have a one-off question about the edge case that does not require a feature then please consider asking a question in argocd slack [channel](https://argoproj.github.io/community/join-slack).
+<!-- If you are trying to resolve an environment-specific issue or have a one-off question about the edge case that does not require a feature then please consider asking a question in argocd slack [channel](https://argoproj.github.io/community/join-slack). -->
 
 Checklist:
 
@@ -16,19 +16,19 @@ Checklist:
 
 **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**
 
-A list of the steps required to reproduce the issue. Best of all, give us the URL to a repository that exhibits this issue.
+<!-- A list of the steps required to reproduce the issue. Best of all, give us the URL to a repository that exhibits this issue. -->
 
 **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. -->
 
 **Version**