Fix formatting in nricp_amberg/nricp_sumner comparsion docs

[aganders3]

This fixes some formatting issues in the comparison lists under nricp_amberg and nricp_sumner methods in the documentation.

To get docs building locally I also had to make some changes to the Makefile and Dockerfile. I'm happy to remove these changes if they're for some reason specific to my environment, or if they'd fit better in a separate PR.

Before (current):

After (this PR):

[mikedh]

Looks much nicer, thanks for the fix! The docker changes look reasonable to me, but just out of curiosity what platform are they for? M1 macs?

[aganders3]

Thanks!

The docker changes look reasonable to me, but just out of curiosity what platform are they for? M1 macs?

Yes, on my M1 Mac it failed trying to build vahcdx with this error:

 > [build 3/3] RUN pip install /home/user[easy]:
2.610         File
2.610       "/home/user/.cache/uv/builds-v0/.tmplbNhBF/lib/python3.13/site-packages/pybind11/setup_helpers.py",
2.610       line 268, in auto_cpp_level
2.610           raise RuntimeError(msg)
2.610       RuntimeError: Unsupported compiler -- at least C++11 support is needed!
2.610 
2.610       hint: This usually indicates a problem with the package or the build
2.610       environment.
2.610   help: `vhacdx` (v0.0.8.post2) was included because `trimesh[easy]` (v4.8.2)
2.610         depends on `vhacdx`

I believe by default a Docker on an Apple Silicon Mac will build an ARM64 image, so it would need a manylinux aarch64 wheel to work inside the container without having to build it.

[aganders3]

Ah, haha I'm now seeing that package is under the trimesh org. So perhaps it could be worth trying to add such a wheel? It may not be a huge task since it's already using cibuildwheel, which should support building Linux ARM wheels on GitHub Actions with the ubuntu-24.04-arm runner: https://cibuildwheel.pypa.io/en/stable/ci-services/#github-actions