Clarifying-permissions-ww-admin-tasks-content.md

[sallybracegirdle]

Added a table to help define permissions that can be associated with a role. Also tweaked the copy to help explain.

Please check the following:

• [ ] Has the code POD documentation been added or updated?
• [ ] Whether this PR should include changes to any public documentation, or the FAQ;
• [ ] All cobrand-specific commits start their commit message with the cobrand in square brackets;
• [ ] Is new functionality tested? CodeCov will warn you about the diff coverage, but won’t complain about e.g. new files;
• [ ] Will cobrand-specific changes require additional work to ensure consistent behaviour on www.fixmystreet.com?
• [ ] Are the changes tested for accessibility?
• [ ] Have you updated the changelog? If this is not necessary, put square brackets around this: skip changelog

Please check the contributing docs, and describe your pull request here. Screenshots or GIF animations (using e.g. LICEcap) may be helpful.

Please include any issues that are fixed, using "fixes" or "closes" so that they are auto-closed when the PR is merged.

Thanks for contributing!

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 82.61%. Comparing base (63829fd) to head (f5baf96).

:exclamation: Current head f5baf96 differs from pull request most recent head 2fb44e9

Please upload reports for the commit 2fb44e9 to get more accurate results.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## sallybracegirdle-update-ww-user-manual #5032 +/- ## ========================================================================== - Coverage 82.61% 82.61% -0.01% ========================================================================== Files 396 396 Lines 30810 30810 Branches 4884 4884 ========================================================================== - Hits 25455 25453 -2 - Misses 3908 3911 +3 + Partials 1447 1446 -1 ```

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