docs: add space

Author: pyjun01

docs/src/content/docs/docs/api/marker.mdx

@@ -40,7 +40,7 @@ function MyMap() {
 | crossOnDrag | `boolean` | ... |
 | cursor | `string` | ... |
 | draggable | `boolean` | ... |
-| icon | `string \| google.maps.Icon \|google.maps.Symbol` | ... |
+| icon | `string \| google.maps.Icon \| google.maps.Symbol` | ... |
 | label | `string \| google.maps.MarkerLabel` | ... |
 | opacity | `number` | ... |
 | optimized | `boolean` | ... |