✏ Fix typo in docs about contributing, for compatibility with pip in Zsh

[zhangbo2012]

with zsh, use command python -m pip install -e .[dev,doc,test] not working

(venv) zhangbo@zhangbodeMacBook-Pro fastapi % python -m pip install -e .[dev,doc,test]      
zsh: no matches found: .[dev,doc,test]
(venv) zhangbo@zhangbodeMacBook-Pro fastapi % pip -V
pip 22.3 from /Users/zhangbo/PycharmProjects/fastapi/venv/lib/python3.10/site-packages/pip (python 3.10)

Update to python -m pip install -e ."[dev,doc,test]" , It worked

[codecov]

Codecov Report

Base: 100.00% // Head: 100.00% // No change to project coverage 👍

Coverage data is based on head (4d9d05a) compared to base (bbb8fe1).
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff            @@
##            master     #5523   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          540       540           
  Lines        13946     13946           
=========================================
  Hits         13946     13946           

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[github-actions]

📝 Docs preview for commit 754fe3f at: https://6350e7f6d471d66daba0e771--fastapi.netlify.app

[JarroVGIT]

I have tested the change on bash as well, and it still works. So, this change makes it work on both bash ans zsh, while previously it would only work on bash. I'd recommend to merge this change in the docs. It was originally missed by PR #3131 which was merged (as later on, FastAPI moved away from Flit).

[github-actions]

📝 Docs preview for commit 6d5d9d3 at: https://635b2b484f301710a309ae07--fastapi.netlify.app

[tiangolo]

Awesome, good catch, thanks for the contribution @zhangbo2012! 🍰

And thanks for the reviews everyone, in particular @JarroVGIT, the comments telling me exactly what you tested and checked, help me a lot and help me see that you did review it. 🤓