Add docutils dependency to requirements.txt

[gurpaul-kochhar]

No description provided.

[Copilot]

Pull request overview

Adds an explicit docutils dependency to the documentation build requirements to control the version range used when building docs (e.g., on ReadTheDocs).

Changes:

• Add docutils>=0.20,<0.22 to docs/requirements.txt.

[Copilot]

The new docutils>=0.20,<0.22 constraint may implicitly raise the minimum Python version needed to create environments that install docs/requirements.txt (notably environment.yml installs this file but allows python>=3.6). To avoid dev env resolution failures, consider either removing the lower bound (keeping only an upper pin if that’s the intent), adding an environment marker for older Pythons, or updating the repo’s stated minimum Python version to match the requirement constraints.

Suggested change

	docutils>=0.20,<0.22
	docutils<0.22