Update spec/formatting.md

Co-authored-by: Christopher Dieringer <cdaringe@users.noreply.github.com>

Author: eemeli

spec/formatting.md

@@ -5,7 +5,7 @@
 This document defines the behaviour of a MessageFormat 2.0 implementation
 when formatting a message for display in a user interface, or for some later processing.
 
-Message formatting is here defined in terms of the following stages:
+Message formatting is defined in terms of the following stages:
 
 - **_Resolution_** determines the value of a part of the message,
   such as an _expression_, with reference to the current _formatting context_.