Typo

ref:
https://docs.civicrm.org/dev/en/latest/documentation/style-guide/#describing-the-civicrm-user-interface

https://wiki.civicrm.org/confluence/display/CRMDOC/Verify+a+bug+fix

https://wiki.civicrm.org/confluence/display/CRMDOC/Extending+Smarty

https://wiki.civicrm.org/confluence/display/CRMDOC/Customize+Built-in+Profile+Contribution+and+Event+Registration+Screens

https://wiki.civicrm.org/confluence/display/CRMDOC/Backbone+Reference

https://wiki.civicrm.org/confluence/display/CRMDOC/Transaction+Reference

https://github.com/civicrm/civicrm-core/blob/master/.github/CONTRIBUTING.md

https://wiki.civicrm.org/confluence/display/CRMDOC/Manual+testing

Why? Because right now there's where lots of other content exists which
is pretty similar to this page. And there's no "reference" chapter. I
think that once we're finished with the wiki migration we might like to
clean up that "framework" chapter a bit by moving some pages around. But
until then, I think it's easiest if we keep content together which is
similar.

Issue 92 Rename API Paramaters to API Options and also port in Custom Data Documentation to help with Issue 92

https://wiki.civicrm.org/confluence/display/CRMDOC/Database+layer

(so that we can avoid a broken link in a wiki page we're migrating)

ref:
https://docs.civicrm.org/dev/en/latest/documentation/style-guide/#parts-chapters-sections