Update accessibility/overview.md

Co-authored-by: Yordan <[email protected]>

Author: dimodi

accessibility/overview.md

@@ -87,7 +87,7 @@ You can [obtain and use the Default Ocean Blue A11y swatch]({%slug themes-overvi
 When implementing a Telerik Blazor component, the team:
 
 * Follows the WCAG standard and WAI-ARIA specification to lay the right foundation for the component accessibility.
-* Implements automated unit tests guarantee accessible and semantically correct rendering.
+* Implements automated unit tests to guarantee accessible and semantically correct rendering.
 * Localizes messages for labels, titles, and other elements.
 * Manually tests the component to with regard to its keyboard navigation and usage with screen readers.