Updating all illustrations on first page and design changes

src/components/InfoBox.js

@@ -3,7 +3,7 @@ import Link from 'gatsby-link'
 
 const InfoBox = ({ ...props }) => (
   <div className={`${props.classes}`}>
-    <h2 className="text-black text-3xl my-2">{props.headline}</h2>
+    <h2 className="text-black my-2">{props.headline}</h2>
     <p className="text-black-light leading-normal text-lg font-light">
       {props.text}
     </p>

src/components/SectionIntro.js

@@ -17,12 +17,12 @@ const IntroDefault = ({ ...props }) => (
       </h3>
     )}
     {props.headline && (
-      <h1
+      <h2
         className={`${props.light ? headlineDark : ''}
     text-black pt-1 pb-2`}
       >
         {props.headline}
-      </h1>
+      </h2>
     )}
     {props.text && (
       <p