meet.coop-registration-form.md

@@ -7,13 +7,17 @@ your details, and someone will get back to you shortly via email.
 ## Personal Info:
 
 <div class="formgroup">
-<label for="username">Social.Coop username</label>
-<input id="username" name="username" type="text" maxlength="40">
+<label for="mastodon">Please paste a link to your social.coop profile</label>
+<input id="mastodon" name="mastodon" type="text" maxlength="40">
 
 <label for="email">Email address</label>
 <input id="email" name="email" type="email" required>
 </div>
 
+If you don't mind, it would be useful for us to know what you're intending to use meet.coop for (it isn't restricted to social.coop business!)
+
+<textarea id="use-case" name="use-case" rows="2" maxlength="250"></textarea>
+
 ## Open Collective:
 
 Contributing through [Open Collective] is a condition