Made it so that we store the origin IP for user-submitted articles.

app.py

@@ -135,6 +135,7 @@ async def handle_submit(req: Request, article: str = Form(...)):
         return make_html_redirect_response('/')
 
     # If it all looks good then store it and report it.
+    fetched_art['srcip'] = ipaddr
     await add_article(eff_date, fetched_art)
     await reporthook.send_report('address %s submitted good-looking article %s' % (ipaddr, article))