docs: Explain where network state examples originate

[codecov[bot]]

Codecov Report

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

Project coverage is 43.29%. Comparing base (89d7148) to head (d3c5097). Report is 11 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #734 +/- ## =========================================== + Coverage 20.40% 43.29% +22.88% =========================================== Files 10 12 +2 Lines 1485 3109 +1624 Branches 436 0 -436 =========================================== + Hits 303 1346 +1043 - Misses 1181 1763 +582 + Partials 1 0 -1 ``` | [Flag](https://app.codecov.io/gh/linux-system-roles/network/pull/734/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=linux-system-roles) | Coverage Δ | | |---|---|---| | [sanity](https://app.codecov.io/gh/linux-system-roles/network/pull/734/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=linux-system-roles) | `?` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=linux-system-roles#carryforward-flags-in-the-pull-request-comment) to find out more.

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