internal: use .mbt.md

[Young-Flash]

No description provided.

[peter-jerry-ye-code-review]

‼️ This code review is generated by a bot. Please verify the content before trusting it.

Based on the provided diff, this pull request appears to be solely focused on renaming .md files to .mbt.md files. This seems to be a file extension update to better align with the MoonBit programming language's conventions, where mbt or mbti files are the source files.

Since there are no actual code changes and only file renames with 100% similarity, there are no issues related to Correctness, Performance, or Maintainability. This change is purely structural and does not affect the content or functionality of the files.

Summary of Changes

• Renamed 21 .md files to .mbt.md files.
• All files retained their original content without modifications.

Review Result

No issues were found in this pull request. The changes are safe and help maintain consistency with the MoonBit file naming conventions.

[coveralls]

Pull Request Test Coverage Report for Build 5784

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 92.491%

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Totals
Change from base Build 5778:	0.0%
Covered Lines:	5617
Relevant Lines:	6073

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💛 - Coveralls