fix offending backslash

docs/deploy.rst

@@ -89,7 +89,7 @@ Set up nginx to serve the CIRCLE portal. ::
 
 
     server {
     server {
       listen 80 default;
       listen 80 default;
-      rewrite ^ https://\$host/;  # permanent;
+      rewrite ^ https://$host/;  # permanent;
     }
     }
   END
   END
   sudo /etc/init.d/nginx restart
   sudo /etc/init.d/nginx restart
@@ -145,4 +145,4 @@ the portal application server::
   sudo cp miscellaneous/mancelery.conf /etc/init/
   sudo cp miscellaneous/mancelery.conf /etc/init/
   sudo start mancelery
   sudo start mancelery
   sudo cp miscellaneous/portal-uwsgi.conf /etc/init/
   sudo cp miscellaneous/portal-uwsgi.conf /etc/init/
-  sudo start portal-uwsgi
+  sudo start portal-uwsgi
\ No newline at end of file