Update toast.md fix typo (#7533)

Author: cacabo

packages/core/src/components/toast/toast.md

@@ -12,7 +12,7 @@ It is possible to show more than one toast on-screen at a time.
 @### Toast
 
 **Toasts** have a built-in timeout of five seconds. Users can also dismiss them manually by clicking
-the × button. overing the cursor over a toast prevents it from disappearing. When the cursor
+the × button. Hovering the cursor over a toast prevents it from disappearing. When the cursor
 leaves the toast, the toast's timeout restarts. Similarly, focussing the toast DOM element (for
 example, by hitting the `tab` key) halts the timeout, and blurring restarts the timeout.