Use mainnet repo for nginx cache warmer script

production/mempool-start-all

@@ -24,7 +24,7 @@ fi
 # start nginx warm cacher
 for site in mainnet;do
     echo "starting mempool cache warmer: ${site}"
-    screen -dmS "warmer-${site}" $HOME/mempool/production/nginx-cache-warmer
+    screen -dmS "warmer-${site}" $HOME/mainnet/production/nginx-cache-warmer
 done
 
 exit 0