Bug 11403: Add missing help file to new Renew page

Bug 11403: Add missing help file to new Renew page

This patch adds a help file to the Renew page found under
Circulation.

To test:

* Go to Circulation > Renew
* Click the help link
* Confirm text and manual link are correct.

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Works as described.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>
(cherry picked from commit e8808dfd527b2b461485507fe508928bb84b7f82)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>