IMPORTANT: This PR is a new PR for PR #136 Fixing links. PR #136 has already been approved. Per RussellSpitzer's comment in PR #136, I rebased. Correct me if I'm wrong but it appears now I need to open a new PR to merge the changes.

Description

Please include a summary of the changes and the related issue. Please also include relevant motivation and context. List any dependencies that are required for this change.

• docs\command-line-interface.md: Updated a link so it is an absolute link that points to the Redocly output. Currently, it is a relative link that points to the GitHub-preview Markdown file for the content.
• docs/entities.md: Updated some links so they use an absolute link. Currently, they use a relative link, which doesn't work with the Redocly output (broken link).
• docs/overview.md: Updated some links so they they point to an id attribute to align with the Redocly output. Currently, they point to a raw .md file in the /docs folder. The Redocly output combines .md files in the /docs folder into a single index.html file.
• docs/quickstart.md:
  • Updated some links so they they point to an id attribute to align with the Redocly output. Currently, they point to a raw .md file in the /docs folder. The Redocly output combines .md files in the /docs folder into a single index.html file.
  • Updated ./command-line-interface.md links to https://github.com/polaris-catalog/polaris/blob/main/docs/command-line-interface.md. This exposes a Copy button and presents the GitHub ToC on the left.

Fixes # (issue): N/A

Type of change

Please delete options that are not relevant.

• This change requires a documentation update

How Has This Been Tested?

• I tested the updated links locally in my browser (Chrome).

Checklist:

Please delete options that are not relevant.

• I have performed a self-review of my code
• My changes generate no new warnings
• I have signed and submitted the ICLA and if needed, the CCLA. See Contributing for details.