typo fix.

Author: rouilj

CHANGES.txt

@@ -87,7 +87,7 @@ Features:
   parse the subject line. (John Rouillard)
 - The database filter method now can also do an exact string search.
 - The database filter method now has limit and offset parameters that
-  map to the corresponging parameters of SQL.
+  map to the corresponding parameters of SQL.
 - issue2551061: Add rudimentary experimental support for JSON Web
   Tokens to allow delegation of limited access rights to third
   parties. See doc/rest.txt for details and intent. (John Rouillard)