Adding note installation for Macs

[codecov[bot]]

Codecov Report

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

Project coverage is 82.47%. Comparing base (81bc364) to head (857f2fb). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #917 +/- ## ========================================== - Coverage 82.53% 82.47% -0.07% ========================================== Files 85 85 Lines 4702 4702 ========================================== - Hits 3881 3878 -3 - Misses 821 824 +3 ``` | [Flag](https://app.codecov.io/gh/chidiwilliams/buzz/pull/917/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chidi+Williams) | Coverage Δ | | |---|---|---| | [Linux](https://app.codecov.io/gh/chidiwilliams/buzz/pull/917/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chidi+Williams) | `82.13% <ø> (ø)` | | | [macOS](https://app.codecov.io/gh/chidiwilliams/buzz/pull/917/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chidi+Williams) | `80.09% <ø> (-2.32%)` | :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=Chidi+Williams#carryforward-flags-in-the-pull-request-comment) to find out more.

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