NamespaceMap: Remove TODO and fix caps

[bact]

• Remove "TODO" as the URLs are already updated. (although they are all pointing directly to the repo: https://github.com/spdx/spdx-3-model/ - is this something we are preferred?)
• Also use 4-space indent for list, to keep the multiple paragraphs rendered correctly.

[goneall]

@bact I personally think we should point to the generated mkdocs HTML pages rather than the repo. We can discuss on the next tech call.

[kestewart]

Thanks!

[bact]

@bact I personally think we should point to the generated mkdocs HTML pages rather than the repo. We can discuss on the next tech call.

@goneall Our current "Model and serializations" page at https://spdx.github.io/spdx-spec/v3.0/serializations/ does not has information about NamespaceMap. While our "Notes on Serialization" at https://github.com/spdx/spdx-3-model/tree/main/serialization#readme has it.

[goneall]

Discussed on 30 July 2024 tech call:

• Agreed we should point to the HTML - required for ISO
• We need to open a pull request to add the information to the spec serialization section, then change the links in this PR

[bact]

We need to open a pull request to add the information to the spec serialization section, then change the links in this PR

@kestewart @goneall A PR #1016 is open to add NamespaceMap info to the "Models and serializations" chapter of the spec.

[bact]

@zvr @kestewart this PR was automatically and unintentionally closed by GitHub because the description of PR #1016 has the word "fix" before this PR number.

Do you mind to reopen this please? Thank you.
This is probably one of the few last PRs for 3.0.1 model.

[bact]

Reopened as #821, with a new fix