1

On my private MediaWiki view & read is set to false.
My website visitors would see
Please Login to view other pages.
What needed to do was edit the login link located in this error message.

2

After searching for this answer.
I finally found a Topic on MediaWiki Project:Support desk called
Editing "Login Required" Page.
It told me to
Try editing the page mediawiki:loginreqpagetext on your wiki
($1 is the link to special:userlogin using the title text at mediawiki:loginreqlink).

(Note: on newer mediawiki, you can see where the system messages come from by appending ?uselang=qqx to a url)

I changed the
Please $1 to view other pages.
into
Please [https://www.example.com Login] to view other pages.

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