added FAQ item for CSV export (#21)

components/FAQ.tsx

@@ -69,6 +69,11 @@ export function FAQ({}) {
               Well, maybe it should be. In the meantime, you can use this
               website.
             </FAQItem>
+
+            <FAQItem title="Can I download the list of accounts as CSV?">
+              While it would be a useful feature, Followgraph does <em>not</em> plan to offer this functionality
+              as it would facilitate inorganic and potentially malicious behaviour.
+            </FAQItem>
           </div>
         </div>
       </div>