Fix indentation

compose.yml

@@ -26,23 +26,23 @@ services:
     volumes:
       - redis:/data
 
-   es:
-     image: docker.elastic.co/elasticsearch/elasticsearch-oss:6.8.10
-     environment:
-       - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
-       - "cluster.name=es-mastodon"
-       - "discovery.type=single-node"
-       - "bootstrap.memory_lock=true"
-     networks:
-       - internal_network
-     healthcheck:
-       test: ["CMD-SHELL", "curl --silent --fail localhost:9200/_cluster/health || exit 1"]
-     volumes:
-       - es:/usr/share/elasticsearch/data
-     ulimits:
-       memlock:
-         soft: -1
-         hard: -1
+ es:
+   image: docker.elastic.co/elasticsearch/elasticsearch-oss:6.8.10
+   environment:
+     - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
+     - "cluster.name=es-mastodon"
+     - "discovery.type=single-node"
+     - "bootstrap.memory_lock=true"
+   networks:
+     - internal_network
+   healthcheck:
+     test: ["CMD-SHELL", "curl --silent --fail localhost:9200/_cluster/health || exit 1"]
+   volumes:
+     - es:/usr/share/elasticsearch/data
+   ulimits:
+     memlock:
+       soft: -1
+       hard: -1
 
   web:
     image: &image tootsuite/mastodon:v3.3.0