[Documentation:InstructorUI] Fix email address typo (#639)

Fix "qaddress" to "address".

Author: murphk35

Diff for: _docs/student/account/email_addresses.md

@@ -7,7 +7,7 @@ title: Email Address(es)
 
 When your Submitty account is created, your primary email address will
 be specified by your instructor or system administrator.  This will
-typically be your university / school email qaddress.
+typically be your university / school email address.
 
 You can view this email on your "My Profile" page.  However, you cannot
 directly edit this email address.  If there is an error with this
@@ -30,4 +30,4 @@ addition to your primary address.
 
 ---
 
-![](/images/student/secondary_email.png)
+![](/images/student/secondary_email.png)