Update introduction.mdx

i changed the red color to blue

Author: parsamoloody

docs/introduction.mdx

@@ -115,9 +115,10 @@ import styled from '@emotion/styled'
 const Button = styled.button`
   padding: 32px;
   background-color: hotpink;
+  
   font-size: 24px;
   border-radius: 4px;
-  color: black;
+  color: blue;
   font-weight: bold;
   &:hover {
     color: white;