Change the wording of the registration page I want to change the wording of the default registration page.  I found some posts about completely customizing/re-theming the page but they seemed like total overkill for what I had in mind.  Specifically, this is designed to be a website for only students that go to my school, so I have already set it up so that you can only register with @myschool.edu email address.  But I can't figure out how to let people know that on the registration page.  I am surprised you can't edit the registration page through the configuration module at all.
If you just want to add a few directions at the top/bottom, try creating a custom
 block.  Create a custom block with the instructions you want to add.  On the block configuration page, you can set the path to display only on certain pages.  Set that to user/register.  Then all you have to do is make sure the block is appearing in the appropriate region in your theme.