fix: typo in the docker-compose.yml example

content/blog/i2p-on-vps.md

@@ -24,8 +24,8 @@ services:
     container_name: i2p
     restart: unless-stopped
     ports:
-      - ${EXT_PORT:?host port must be manually set}:12345/tcp
-      - ${EXT_PORT:?host port must be manually set}:12345/udp
+      - ${EXT_PORT}:${EXT_PORT}/tcp
+      - ${EXT_PORT}:${EXT_PORT}/udp
     volumes:
       - ${PWD}/i2pconfig:/i2p/.i2p:rw # Mandatory configs
       - ${PWD}/i2ptorrents:/i2psnark:rw # Torrenting support