{Misc} wrap issue templates hint messages.

[yungezz]

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[Component Name 1] (BREAKING CHANGE:) (az command:) make some customer-facing change.
[Component Name 2] (BREAKING CHANGE:) (az command:) make some customer-facing change.

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[yonzhan]

issue templates

[qwordy]

What's purpose of this PR? Why comment these explanations?

[yungezz]

What's purpose of this PR? Why comment these explanations?

today, the hint messages mixed with real issue input from creator. wrap those hint messages up so that issue creator could still see them when creating issues, why it will not be showed after rendering in broswer.

[qwordy]

What's purpose of this PR? Why comment these explanations?

today, the hint messages mixed with real issue input from creator. wrap those hint messages up so that issue creator could still see them when creating issues, why it will not be showed after rendering in broswer.

They all disappear in preview page:
https://github.com/Azure/azure-cli/blob/f39f4bf94078577561cf9c930e6e7d1072438db7/.github/ISSUE_TEMPLATE/Bug_report.md

[yungezz]

What's purpose of this PR? Why comment these explanations?

today, the hint messages mixed with real issue input from creator. wrap those hint messages up so that issue creator could still see them when creating issues, why it will not be showed after rendering in broswer.

They all disappear in preview page:
https://github.com/Azure/azure-cli/blob/f39f4bf94078577561cf9c930e6e7d1072438db7/.github/ISSUE_TEMPLATE/Bug_report.md

that's the purpose, so issue reader could see only real messages about the issue. when creating a new issue, those messages are still there. I can close the PR if people like those hints message in issue :)