updated readme

README.md

@@ -17,6 +17,17 @@ This is code for the XPUB 2025 call.
 * JavaScripts (guestbook)
     * [guestbook.js](call/static/call/guestbook.js)
 
+## Updating
+
+To update the live site:
+
+    git pull
+    ./manage.py collectstatic
+
+And eventually (if the code has changed):
+
+    sudo systemctl restart uwsgi
+
 
 ## Colophon