Markdown table should include leading | on each row

[AArnott]

When copying and pasting stacks from PerfView into a github issue, markdown is pasted in. (yay!)
But because most lines start with +, github considers them to be bulleted list items instead of members of the same table. Adding a | character to the front of each of these lines forces them to be rendered as part of the same table. Today, that's a manual process. Can PerfView do this automatically?

[github-actions]

Due to lack of recent activity, this issue has been labeled as 'stale'. It will be closed if no further activity occurs within 30 more days. Any new comment will remove the label.

[brianrob]

This happens when a user copies and pastes stacks from a StackViewer view.