Update feature list (backport #1372)

[mergify]

We have added a couple of cool features recently that we haven't added to the feature list.

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This is an automatic backport of pull request #1372 done by Mergify.

[mergify]

Cherry-pick of c8a44a6 has failed:

On branch mergify/bp/humble/pr-1372
Your branch is up to date with 'origin/humble'.

You are currently cherry-picking commit c8a44a6.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   ur_calibration/doc/index.rst

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   ur_robot_driver/doc/features.rst

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally