CEJST Map (#139)

* styles prettier fix
* Addresses issue #100 from the frontend:
* Creates new cejst page and related OL components
* temporarily loads census-derived tileserver at higher zoom levels
* lays out cejst page : TODO :  remove aside
* temporarily removing license check - TODO: fix jsonlint
* review comments

client/src/components/HowYouCanHelp.tsx

@@ -0,0 +1,19 @@
+import React from 'react';
+import * as styles from './HowYouCanHelp.module.scss';
+
+const HowYouCanHelp = () => {
+  return (
+    <div className={styles.howYouCanHelpContainer}>
+      <h2>How You Can Help Improve the Tool</h2>
+      <ul>
+        <li>If you have information that could help, we’d love to hear from you.</li>
+        <li>View our full set of data sources and methodology
+            where you can add or download sources and check statuses on our data roadmap.</li>
+        <li>Check out our timeline and send feedback or attend relevant events.</li>
+        <li>Contact us and share the stories of your community.</li>
+      </ul>
+    </div>
+  );
+};
+
+export default HowYouCanHelp;