fix: heading issue in icon doc

example/storybook/src/components/MediaAndIcons/Icon/index.stories.mdx

@@ -346,7 +346,7 @@ Below is a list of all of the icons in the library.
 We can directly create Icon using `createIcon` function exported from `@gluestack-ui/themed` and use it by passing it in `as` prop in `Icon` component.
 CreateIcon function takes viewBox, d, path etc as parameters. We can use svgs from other icon libraries like fluent, react-icons etc.
 
-##### Notes to remember while using `createIcon` function
+##### Notes to remember while using createIcon function
 
 - Pass svg props such as `viewBox` in `createIcon` directly.
 - Copy the svg code without the SVG tag directly into the function argument `Path` or `D` or whichever prop justifies your svg.