Update CHANGELOG.md

Co-authored-by: Stefano Dafarra <stefano.dafarra@gmail.com>

CHANGELOG.md

@@ -13,7 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added the `ModelTransformsSolidShapes.h` header in the `iDynTree::idyntree-solid-shapes` library.
   At the moment, this header contains just the `iDynTree::approximateSolidShapesWithPrimitiveShape`
   function, useful to approximate the solid shapes of a given iDynTree::Model to a series of bounding boxes (https://github.com/robotology/idyntree/pull/941).
-- Added `idyntree-model-simplify-shapes` command line tool This tool is useful to take in input a model, and 
+- Added `idyntree-model-simplify-shapes` command line tool. This tool is useful to take in input a model, and 
   return in output the same model, but with all the geometries of the model approximated with their axis aligned 
   bounding boxes (https://github.com/robotology/idyntree/issues/933, https://github.com/robotology/idyntree/pull/941).