docs: Update docs to point to latest

[another-rex]

And fix an incorrect flag.

We can safely use @latest because v2 module only has prereleases at the moment, so latest will pick the latest prerelease.

[jess-lowe]

I think we should update the code snippets in the README to use code blocks instead but I can do that in a separate PR. Otherwise LGTM.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.17%. Comparing base (2821e79) to head (c672bf9).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1548      +/-   ##
==========================================
- Coverage   69.18%   69.17%   -0.02%     
==========================================
  Files         200      200              
  Lines       18989    18989              
==========================================
- Hits        13138    13135       -3     
- Misses       5141     5143       +2     
- Partials      710      711       +1     

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