DOC: Slightly improve the wording of PageObject

[j-t-1]

Also make metadata examples more concise

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.96%. Comparing base (c73ad26) to head (8561d9f).
Report is 1 commits behind head on main.

❗ Current head 8561d9f differs from pull request most recent head b29ea08. Consider uploading reports for the commit b29ea08 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2625   +/-   ##
=======================================
  Coverage   94.96%   94.96%           
=======================================
  Files          50       50           
  Lines        8328     8328           
  Branches     1669     1669           
=======================================
  Hits         7909     7909           
  Misses        260      260           
  Partials      159      159           

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[pubpub-zz]

awaiting PR #2628 to fix the server down issue

[pubpub-zz]

...Not long 😄😉