Add work page, stylistic changes and dynamic classes to buttons

src/pages/how-we-work.js

@@ -0,0 +1,9 @@
+import React from 'react'
+
+const HowWeWork = () => (
+  <div>
+    <h1>How We Work Page</h1>
+  </div>
+)
+
+export default HowWeWork