Add a warning to the group creation page (#2197)

website/src/components/User/GroupCreationForm.tsx

@@ -73,6 +73,10 @@ const InnerGroupCreationForm: FC<GroupManagerProps> = ({ clientConfig, accessTok
                         Fill out following form to create a new group.
                     </p>
 
+                    <p className='mt-1 text-sm leading-6 text-red-600'>
+                        Please note that the information you enter on this form will be publicly available on your group page.
+                    </p>
+
                     <div className='mt-5 grid grid-cols-1 gap-x-6 gap-y-4 sm:grid-cols-6'>
                         <GroupNameInput />
                         <EmailContactInput />