[Unitary-Hack][Sub-Braket] Doc string in submission/braket.py

[Manvi-Agrawal]

Fixes #957.

Locally rendered doc:
sub_braket.pdf

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.91%. Comparing base (0692d05) to head (1267da4).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #981      +/-   ##
==========================================
+ Coverage   89.90%   89.91%   +0.01%     
==========================================
  Files         110      110              
  Lines        8132     8132              
==========================================
+ Hits         7311     7312       +1     
+ Misses        821      820       -1     

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[weinbe58]

Small note about IR, also please remove the indents per my other comments on your PRs.

[Manvi-Agrawal]

Hi @weinbe58 , @Roger-luo agreed here in #970 (comment) thats its okay to ident the args if looks good in locally rendered documentation. I have attached the locally rendered doc as the PDF file in PR Description.. Thats why I indented the args here and in the other PRs. Lets close on this conversation in my other PR, about whether to indent the args or not. Locally, I have seen no-effect to sometimes bad rendering.

[weinbe58]

overall looks OK but missing some context about execution, see my comment #980 about the wording the doc strings.