Fix typos, markdown, and cleanup Support workflow pages
What?
Does one or more of following (as needed) to all files in support workflows:
- fixes typographical and spelling errors
- fixes incorrect Markdown syntax or indentation
- removes multiple consecutive blank lines
- trims trailing whitespace
Why?
Typos/spelling errors are fixed for accuracy and clarity.
The rest is markdown formatting best practices to improve consistency, readability, and make linters happy.