coppa note on signup page

html/signup.html

@@ -13,6 +13,9 @@
             <h1>Request an Account</h1>
             <p>
                 If you haven't received the welcome email within 24 hours, please check your spam folder.
+	    </p>
+	    <p>
+	        Your email address is only used to send you a welcome email.
             </p>
             <p>
             <form action="submit.php">
@@ -25,6 +28,8 @@
                 <input type="text" size="48" name="interest" />
                 <h3>Paste Your SSH Key in OpenSSH Format:<br /></h3>
                 <input type="text" size="48" name="sshkey" /><br />
+		You must be at least 13 years old to use this system.<br />
+		<br />
                 <input type="submit" value="Submit" />
             </form>
             </p>
@@ -32,4 +37,4 @@
     </div>
 </body>
 
-</html>
+</html>