Fix iframe formatting in registration.md

Author: lschriml

pages/registration.md

@@ -21,7 +21,7 @@ Registration is open !!
 - Industry attendees registration $700 USD/1050NZD
 
 **Registration Form:** 
-- <iframe src="https://docs.google.com/forms/d/e/1FAIpQLSfgMuE6MEIGS-TssElvib17cIBjbcWGzIjhsBJ3L_jiSq0urg/viewform? embedded=true" width="640" height="2243" frameborder="0" marginheight="0" marginwidth="0">Loading…</iframe>
+<iframe src="https://docs.google.com/forms/d/e/1FAIpQLSfgMuE6MEIGS-TssElvib17cIBjbcWGzIjhsBJ3L_jiSq0urg/viewform? embedded=true" width="640" height="2243" frameborder="0" marginheight="0" marginwidth="0">Loading…</iframe>
 
 By registering you are agreeing to the terms and conditions set out below, please read these careful before completing your registration.