Add blog post for NMT macaque atlases

[bahramani]

Before submitting a pull request (PR), please read the contributing guide.

Please fill out as much of this template as you can, but if you have any problems or questions, just leave a comment and we will help out :)

Description

What is this PR

• Bug fix
• Addition of a new feature
• Other

Why is this PR needed?

This PR announces the addition of the NMT macaque atlases to BrainGlobe and adds them to the website atlas documentation.

What does this PR do?

• Adds a blog post for the NMT macaque atlases.
• Adds ARM/CHARM visualisation images for the blog post.
• Adds CHARM, SARM, and ARM entries to the atlas details page.
• Adds CHARM, SARM, and ARM rows to the atlas table.

References

Related atlas resources:

• NMT v2: https://afni.nimh.nih.gov/pub/dist/doc/htmldoc/nonhuman/macaque_tempatl/template_nmtv2.html
• CHARM: https://afni.nimh.nih.gov/pub/dist/doc/htmldoc/nonhuman/macaque_tempatl/atlas_charm.html
• SARM: https://afni.nimh.nih.gov/pub/dist/doc/htmldoc/nonhuman/macaque_tempatl/atlas_sarm.html

How has this PR been tested?

Local checks:

• Rebasing onto current upstream/main
• git diff --check upstream/main...HEAD
• Local link sanity check for touched Markdown files
• Image/GIF file validation

A full Sphinx build was not run locally because Sphinx is not installed in the current local Python environment.

Is this a breaking change?

No.

Does this PR require an update to the documentation?

Yes. This PR is itself a documentation/website update. It adds the NMT macaque atlases to the atlas table and atlas details page, and adds a new blog post.

Checklist:

• The code has been tested locally
• Tests have been added to cover all new functionality (unit & integration)
• The documentation has been updated to reflect any changes
• The code has been formatted with pre-commit