Additional russian function translations (#2554)

* Additional Russian translations for Excel functions

* Update change log

Author: Mark Baker

CHANGELOG.md

@@ -32,7 +32,7 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 
 ### Changed
 
-- Nothing
+- Additional Russian translations for Excel Functions (courtesy of aleks-samurai)
 
 ### Deprecated