PR Summary

I found the 'Set And Get' example page confusing, as much of the wording implies that the methods are set & get rather than setp and getp, e.g:

• "set operates on a single instance or a list of instances";
• "get returns the value of a given attribute. You can use get to query the value of a single attribute".

This PR makes a few changes to make the text clear, including by making the method names explicit with monospace formatting. (Also, as per the current formatting guide, converts the amended & clearer title to 'upper lower' case).

I am happy to amend it if, & as, requested, but in general I think the wording should be clearer. Thanks.

PR Checklist

[Only one checklist item applicable:]

- [ ] Has Pytest style unit tests
- [ ] Code is Flake 8 compliant
- [ ] New features are documented, with examples if plot related

• Documentation is sphinx and numpydoc compliant

- [ ] Added an entry to doc/users/next_whats_new/ if major new feature (follow instructions in README.rst there)
- [ ] Documented in doc/api/api_changes.rst if API changed in a backward-incompatible way