Add svg images, markup and changes in structure

src/components/SectionIntro.js

@@ -0,0 +1,12 @@
+import React from 'react'
+import Link from 'gatsby-link'
+
+const IntroDefault = ({ intro, headline, text, classes }) => (
+  <div className={`${classes}`}>
+    <h3>{intro}</h3>
+    <h1>{headline}</h1>
+    <p>{text}</p>
+  </div>
+)
+
+export default IntroDefault