[FX] Add note about more use cases of FX

[jamesr66a]

Stack from ghstack:

• [FX] Add note about more use cases of FX #51576 [FX] Add note about more use cases of FX

Differential Revision: D26203610

[facebook-github-bot]

💊 CI failures summary and remediations

As of commit 8d42e90 (more details on the Dr. CI page):

---

💚 💚 Looks good so far! There are no failures yet. 💚 💚

---

This comment was automatically generated by Dr. CI (expand for details).

Follow this link to opt-out of these comments for your Pull Requests.

Please report bugs/suggestions to the (internal) Dr. CI Users group.

[codecov]

Codecov Report

Merging #51576 (8d42e90) into gh/jamesr66a/358/base (0118dec) will decrease coverage by 0.33%.
The diff coverage is n/a.

@@                    Coverage Diff                    @@
##           gh/jamesr66a/358/base   #51576      +/-   ##
=========================================================
- Coverage                  80.87%   80.53%   -0.34%     
=========================================================
  Files                       1943     1943              
  Lines                     211526   211526              
=========================================================
- Hits                      171073   170361     -712     
- Misses                     40453    41165     +712     

[facebook-github-bot]

@jamesr66a merged this pull request in 209e27e.