Fix typo

storybook/src/components/Grid/Grid.docs.mdx

@@ -17,7 +17,7 @@ import README from "../../../../packages/css/src/components/grid/README.md?raw";
 The grey strokes in the examples on this page indicate the columns of the grid.
 The gaps between the columns are transparent.
 Pink boxes represent cells on the grid.
-Note: In Safari, the grey grid indicators get drawn slightlu incorrectly.
+Note: In Safari, the grey grid indicators get drawn slightly incorrectly.
 
 The grid has 12 columns on wide screens, so all 12 cells in the example above are in a row.
 On narrow screens, you will see three rows of four columns; on medium-wide screens, one row of eight and one of four.