Adjust name of [role="img"] elements must have an alternative text

[KB55]

Product

axe Extension

Product Version

4.8.4

Latest Version

• [X] I have tested the issue with the latest version of the product

Issue Description

Suggest that [role="img"] elements must have an alternative text change to [role="img"] elements must have alternative text Rule ID: role-img-alt

Please feel free to correct me if I am wrong but I think 'alternative text' is considered plural and therefore the word 'an' is not grammatically correct in the name of this rule and reads oddly

[straker]

Thanks for the issue. We'll look into getting the description updated.