Add a few feature examples

[codecov[bot]]

Codecov Report

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

Project coverage is 53.90%. Comparing base (e56656f) to head (516e527). Report is 2 commits behind head on develop.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #982 +/- ## =========================================== - Coverage 53.91% 53.90% -0.02% =========================================== Files 178 178 Lines 19521 19521 =========================================== - Hits 10525 10523 -2 - Misses 8996 8998 +2 ``` | [Flag](https://app.codecov.io/gh/TheDeanLab/navigate/pull/982/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=TheDeanLab) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/TheDeanLab/navigate/pull/982/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=TheDeanLab) | `53.90% <ø> (-0.02%)` | :arrow_down: | 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=TheDeanLab#carryforward-flags-in-the-pull-request-comment) to find out more.

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.