Update iMIP.md

fix linking

Author: wsdwl

_pages/iMIP.md

@@ -9,6 +9,6 @@ published: true
 
 # iMIP - transporting iTip messages via email.
 
-1. [iMIP introduction](/iMIP/iMIP-introduction)
+1. [iMIP Introduction](/iMIP/iMIP-Introduction)
 1. [iMIP security](/iMIP/iMIP-security)
 1. [iMIP Best practices](/iMIP/iMIPBest-Practices)