Enhance docs on named routes and catch-all route

[lundberg]

Fixes #226

[codecov[bot]]

Codecov Report

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

Project coverage is 100.00%. Comparing base (e97b677) to head (3b0ab6f). Report is 1 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #256 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 22 22 Lines 2910 2910 Branches 443 443 ========================================= Hits 2910 2910 ```

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