Update src/pages/using-spark/components/button.mdx
Update src/pages/using-spark/components/button.mdx

Co-authored-by: Amber Febbraro <69a4acba3ea275a51a331a8fd98e73bc11bfc470@quickenloans.com>
sparkdesignsystem/spark-design-system,sparkdesignsystem/spark-design-system,sparkdesignsystem/spark-design-system,sparkdesignsystem/spark-design-system