Merge pull request #635 from carpentries/brownsarahm-patch-1

update e-mail address

Author: zkamvar

.github/PULL_REQUEST_TEMPLATE.md

@@ -4,7 +4,7 @@
 Thanks for contributing! :heart:
 
 If this contribution is for instructor training, please email the link to this contribution to
-checkout@carpentries.org so we can record your progress. You've completed your contribution
+instructor.training@carpentries.org so we can record your progress. You've completed your contribution
 step for instructor checkout by submitting this contribution!
 
 Keep in mind that **lesson maintainers are volunteers** and it may take them some time to