resolved clarify f_x

[Lakshyadevelops]

• Closes Clarify f_x #1677

• I am familiar with the contributing guidelines

• Maintainer: Appropriate GitHub Labels (including remote-data) and Milestone are assigned to the Pull Request and linked Issue.

[cwhanse]

Thanks @Lakshyadevelops please add your GH name as a contributor here: https://github.com/pvlib/pvlib-python/blob/main/docs/sphinx/source/whatsnew/v0.9.6.rst

[cwhanse]

@Lakshyadevelops my apologies if my remark wasn't clear. Please undo the change to whatsnew.rst (that's a template). Add the following in the Contributors section of v0.9.6.rst. If you'd rather not add your name, please just add your GH user name.

* your name (:ghuser:`Lakshyadevelops`)

[cwhanse]

Thanks @Lakshyadevelops

[kandersolar]

Superseded by #1727