fix typo (#1953)

Co-authored-by: Adam Carpenter <[email protected]>

Author: GoodDaisy

docs/src/lib/components/gas/GasCard.svelte

@@ -9,7 +9,7 @@
   export { className as class }
   export let backgroundStyle = ''
 
-  // Holds refference to the background element node for animation
+  // Holds reference to the background element node for animation
   export let cardBg = null
 
   const cardColors: Record<number, string> = {