Bug 33699: Typo in identity_provider_domains.tt (presedence)

Bug 33699: Typo in identity_provider_domains.tt (presedence)

This patch corrects the typo "presedence" with "precedence."

The patch also corrects some grammar:

"so if the 'library.com' domain will take presedence over
'*library.com'"

...changed to...

"so 'library.com' domain will take presedence over '*library.com'"

I also changed the <div>s inside that block of help text to <p> in order
to improve legibility.

To test, apply the patch and go to Administration -> Identity providers
-> Manage domains (on an existing provider) -> Edit, and click the
"More" button under the "Domain" field.

Confirm that the text is correct.

Signed-off-by: Caroline Cyr La Rose <caroline.cyr-la-rose@inlibro.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>