Why?

• Reading through a list can be visually tedious and it may be difficult for the reader to remember all of the points being made.
• Make the first sentence or phrase a summary. This can be emboldened to make it stand out and easier for the reader to scan through. This helps them summarize the points, which should make it easier to remember the points being made.

Here are some real world examples:

• https://github.com/github/gitignore/tree/c851a10cab28082fcfbe5cecce52c4b5edca1d7c#contributing-guidelines
• https://github.com/yarnpkg/yarn/tree/d8171345b5d8d68cd82fec0899166ee9cda3b03c#features
• https://www.collaborativefund.com/blog/a-few-rules/