renamed Træfik network in compose file, added name variable for it

docker-compose.yml

@@ -60,7 +60,7 @@ services:
       - traefik.http.routers.https-${TRAEFIK_ROUTER}.tls=true
       - traefik.http.routers.https-${TRAEFIK_ROUTER}.tls.certresolver=letsencrypt
     networks:
-      - traefik-proxy
+      - traefik
     ports:
       - 80:80
       - 443:443
@@ -70,5 +70,6 @@ services:
       - ./le-certs.json:/le-certs.json
 
 networks:
-  traefik-proxy:
+  traefik:
     external: true
+    name: ${TRAEFIK_NETWORK}