Add more info

www/switch-emoji/index.html

@@ -39,7 +39,8 @@ <h1>Switch Emoji Proposal</h1>
 <h2>Tell us how you would use it:</h2>
 
 <form action="/switch-emoji/user.php" method=POST>
-    <label>Give us some sequences<textarea name=sequences></textarea></label>
+    <label>Give us some sequences that you would use. Use the ⬆️  or ⬇️  instead of the switch
+      up or switch down.<textarea name=sequences></textarea></label>
     <label>Anything else?<textarea name=info></textarea></label>
     <button>Submit</button>
 </form>