changelog: fix typo

Fix changelog typo introduced in PR #309.

Author: DifferentialOrange

CHANGELOG.md

@@ -12,7 +12,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Changed
 
 ### Fixed
-* Fetching invalid ddl confuguration (sharding key for non-existing space)
+* Fetching invalid ddl configuration (sharding key for non-existing space)
   is no longer breaks CRUD requests (#308, PR #309).
 * ddl space record delete no more throws error if crud is used (#310, PR #311).
 * crud sharding metainfo is now updated on ddl record delete (#310, PR #311).