Bump markdownlint-cli in .pre-commit-config.yaml file

[ayushjariyal]

issue #2341

Initially, I updated markdownlint-cli from v0.43.0 → v0.45.0, but running make lint failed with errors:

After that, I downgraded slightly to v0.44.0 (instead of v0.45.0), and make lint executed successfully:

[ayushjariyal]

@Fokko, could you please review this PR and let me know why updating to v0.45.0 caused make lint to fail

[Fokko]

@ayushjariyal This is caused by that 0.45.0 introduces a new check that check if there is only one heading in Markdown. To get the check passing we need to look into the Markdown files and resolve the issues.

[ayushjariyal]

@Fokko, I’ve updated markdownlint-cli from v0.44.0 to v0.45.0 and adjusted the Markdown files accordingly. After testing with make lint, everything passes successfully

Please let me know if there are any further improvements you’d recommend.

[Fokko]

This looks great @ayushjariyal Thanks again!