chore(combo): Fixing typo

Author: IvanKitanov17

CHANGELOG.md

@@ -5,7 +5,7 @@ All notable changes for each version of this project will be documented in this
 ## 19.2.15
 ### General
 - `IgxSimpleCombo`
-    - Added `disableFiltering` to the `IgxSimpleCombo`, which enables/disables the filtering in the list. The default is `false`. With this introduction, `filteringOptions.filterable` is no longer usde.
+    - Added `disableFiltering` to the `IgxSimpleCombo`, which enables/disables the filtering in the list. The default is `false`. With this introduction, `filteringOptions.filterable` is no longer used.
 - `IgxCombo`, `IgxSimpleCombo`
     -  Removed deprecated `filteringOptions.filterable` option.