DOC: Edit phrasing and grammar of FDA software development guidelines

[JakeKitzmann]

PR Checklist

• No API changes were made (or the changes have been approved)
• No major design changes were made (or the changes have been approved)
• Added test (or behavior not changed)
• Updated API documentation (or API not changed)
• Added license to new files (if any)
• Added Python wrapping to new files (if any) as described in ITK Software Guide Section 9.5
• Added ITK examples for all new major features (if any)

Refer to the ITK Software Guide for
further development details if necessary.

[greptile-apps]

Greptile Summary

This PR makes a series of grammar and phrasing corrections to the FDA software development guidelines documentation. The changes improve subject-verb agreement ("Whoever develop" → "Developers of such applications have"), fix tense issues ("will be responsible" → "are responsible"), correct a clear grammatical error ("That will included" → "This includes"), and simplify awkward phrasing ("the use you make of ITK" → "your use of ITK").

Key changes:

• Pluralizes "The developer" to "Developers" and updates surrounding text accordingly throughout the opening section
• Fixes the broken construction "Whoever develop such applications has" → "Developers of such applications have"
• Corrects "That will included things like" → "This includes" (removes mixed-tense error)
• Improves "It is worth to point out" → "It is worth it to point out" (removes unidiomatic infinitive after "worth"); using "It is worth pointing out" (gerund form) would be slightly more standard
• No functional or API changes; documentation only

Confidence Score: 5/5

• Safe to merge — documentation-only grammar fixes with no functional impact.
• All changes are purely editorial improvements to a documentation file. No code, logic, or API is touched. The one remaining suggestion (gerund vs. "worth it to") is purely stylistic and does not block merge.
• No files require special attention.

Important Files Changed

Filename	Overview
Documentation/docs/learn/fda_sw_development_guidelines.md	Documentation-only grammar and phrasing improvements: pluralizes "developer" to "developers", fixes "Whoever develop" agreement, simplifies phrasing, fixes "That will included" → "This includes", and corrects "worth to" → "worth it to".

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[Develop Medical Application\nusing ITK/VTK] --> B{Is application subject\nto FDA approval?}
    B -- Yes --> C[Developer is responsible\nfor validation]
    B -- No --> D[Standard development\npractices apply]
    C --> E[Validate use of ITK/VTK\nfunctionalities]
    C --> F[Validate all other OTS\nsoftware used]
    F --> F1[OS, Compiler, OpenGL,\nLibraries, Processor]
    E --> G[Demonstrate ITK/VTK\nbehaves as expected\nin application context]
    G --> H[Submit to FDA per\napplicable guidelines]

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[N-Dekker]

Thanks @JakeKitzmann ! Looks fine to me, although I would suggest squashing the two commits into one!

[N-Dekker]

Off-topic (probably beyond the scope of this pull request), I wonder why these ITK guidelines explicitly include VTK here!

VTK is mentioned four times, in this document:

ITK/Documentation/docs/learn/fda_sw_development_guidelines.md

Line 11 in 151d64f

ITK and VTK are intended to be used as elements in medical applications,

ITK/Documentation/docs/learn/fda_sw_development_guidelines.md

Line 26 in 151d64f

Note that not only you need to validate the use of ITK or VTK, but also

ITK/Documentation/docs/learn/fda_sw_development_guidelines.md

Line 39 in 151d64f

ITK and VTK are already following many of the FDA Guidelines for