Adding a note about the _.each change.

index.html

@@ -1194,6 +1194,8 @@ _([1, 2, 3]).value();
         <tt>_.template</tt> now correctly escapes backslashes in templates.
         Improved <tt>_.reduce</tt> compatibility with the ECMA5 version: 
         if you don't pass an initial value, the first item in the collection is used.
+        <tt>_.each</tt> no longer returns the iterated collection, for improved
+        consistency with ECMA5's <tt>forEach</tt>.
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