ClassReferenceNameCasingFixer description is misleading

[caugner]

Bug report

The description states:

When referencing a class it must be written using the correct casing.

However, according to this comment, it only affects internal classes.

To avoid wrong expectations, the description should state:

When referencing an internal class it must be written using the correct casing.

Code snippet that reproduces the problem

(n/a)

[SpacePossum]

Hi and thank for sharing your experience,

I'm ok if the description is a bit more explicit, can you open a PR with the improvement?