Mention fMRIPost-AROMA in parser documentation

[tsalo]

Closes #3355.

Changes proposed in this pull request

• Add description to the deprecated ICA-AROMA argument group in the parser.

[tsalo]

Here's what it looks like:

[effigies]

What does it look like with fmriprep --help?

[effigies]

The failures will need some commits from #3353. Don't worry about it for now.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.03%. Comparing base (fe7c9ff) to head (fe75352).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3356      +/-   ##
==========================================
- Coverage   71.03%   68.03%   -3.01%     
==========================================
  Files          56       56              
  Lines        4233     4233              
  Branches      638      638              
==========================================
- Hits         3007     2880     -127     
- Misses       1114     1230     +116     
- Partials      112      123      +11     

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[tsalo]

Here's what fmriprep --help looks like locally:

The failures will need some commits from #3353. Don't worry about it for now.

Awesome!

[effigies]

LGTM. Let's merge it.