Fix some language issues.

Author: faassen

draft-zyp-json-schema-03.xml

@@ -728,7 +728,7 @@ starting with the root of the JSON structure from the representation of
 the resource identified by the pre-fragment URI. If the target is a JSON
 object, then the new target is the value of the property with the name
 identified by the next property reference token in the fragment. If the
-target is a JSON array, than the target is determined by finding the
+target is a JSON array, then the target is determined by finding the
 item in array the array with the index defined by the next property
 reference token (which MUST be a number). The target is successively
 updated for each property reference token, until the entire fragment has