added markdown, organized templates, fixed email overflow issue in pikachu

src/shared/MarkdownHelpText.js

@@ -0,0 +1,22 @@
+import React from 'react';
+
+const MarkdownHelpText = ({ className }) => {
+  return (
+    <div className={className}>
+      <p className="text-gray-800 text-xs">
+        You can use{' '}
+        <a
+          className="text-blue-600 hover:underline"
+          target="_blank"
+          rel="noopener noreferrer"
+          href="https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet"
+        >
+          GitHub Flavored Markdown
+        </a>{' '}
+        to style this section of text.
+      </p>
+    </div>
+  );
+};
+
+export default MarkdownHelpText;