make form email comment make more sense. Ref #5

layouts/shortcodes/form-contact.html

@@ -9,7 +9,7 @@
     <label class="{{ $.Scratch.Get "labelClasses" }}" for="email">Email Address</label>
     <input type="email" id="email" name="email" class="{{ $.Scratch.Get "inputClasses" }}"  required placeholder=" "  aria-labelledby="email"/>
     <div class="requirements f6 gray glow i ph3 overflow-hidden">
-      Must be a valid email address.
+      An email address is required.
     </div>
 
     <label class="{{ $.Scratch.Get "labelClasses" }}" for="message">Message</label>