fix: Fix incorrect usage of "signup" Update WipCallout.tsx #1246
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Description
I noticed that the phrase "signup to help us revise this page" uses "signup" incorrectly. In this context, it should be "sign up" (separated) since it functions as a verb meaning "to register." This change ensures grammatical accuracy and clarity.
Additional context
Explanation:
"Sign up" is the correct spelling of the verb meaning "to register."
"Signup" is a noun used to refer to the registration process (e.g., "the signup process"), but in this context, a verb is required.