Make pronouns optional part of the instructions

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 54.34%. Comparing base (bc76bd2) to head (ad3cf62).

Files	Patch %	Lines
sam/slack.py	0.00%	3 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #45 +/- ## ========================================== - Coverage 54.68% 54.34% -0.34% ========================================== Files 9 9 Lines 320 322 +2 ========================================== Hits 175 175 - Misses 145 147 +2 ```

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