docs: add new line after host/vm/summary table

[sunya-ch]

Before:

After add a line:

Signed-off-by: Sunyanan Choochotkaew [email protected]

[github-actions]

🤖 SeineSailor

Here is a concise summary of the pull request changes:

Summary: This pull request enhances the readability of the markdown report generated by the code by adding a new line after the host/VM summary table. The key modifications include introducing a new new_line() method to the MD class, which writes a newline to the output, and calling this method in the write_md_report() function after adding host and VM machine specs.

Impact: These changes do not affect the external interface or behavior of the code, and the signatures of exported functions and global data structures remain unchanged.

Observation: The addition of a newline character improves the report's readability, making it easier to consume and understand. However, it would be beneficial to consider adding a configuration option or parameter to control the formatting of the report, allowing users to customize the output according to their preferences.