use 2 space indentation for yml

compose-dev-frontend.yml

@@ -4,43 +4,43 @@
 #
 # build remark42 docker image - docker-compose -f compose-dev-frontend.yml build
 # start remark42 service - docker-compose -f compose-dev-frontend.yml up
-version: '2'
+version: "2"
 
 services:
-    remark42:
-        build:
-            context: .
-            dockerfile: Dockerfile
-            args:
-                - SKIP_BACKEND_TEST=true
-                # - NODE_ENV=development
+  remark42:
+    build:
+      context: .
+      dockerfile: Dockerfile
+      args:
+        - SKIP_BACKEND_TEST=true
+        # - NODE_ENV=development
 
-        image: umputun/remark42:dev
-        container_name: "remark42-dev"
-        hostname: "remark42-dev"
+    image: umputun/remark42:dev
+    container_name: "remark42-dev"
+    hostname: "remark42-dev"
 
-        logging:
-            driver: json-file
-            options:
-                max-size: "10m"
-                max-file: "5"
+    logging:
+      driver: json-file
+      options:
+        max-size: "10m"
+        max-file: "5"
 
-        ports:
-            - "8080:8080" # primary rest server
-            - "8084:8084" # local oauth2 server
+    ports:
+      - "8080:8080" # primary rest server
+      - "8084:8084" # local oauth2 server
 
-        environment:
-            - REMARK_URL=http://127.0.0.1:8080
-            - SECRET=12345
-            - STORE_BOLT_PATH=/srv/var/db
-            - BACKUP_PATH=/srv/var/backupang
-            - DEBUG=true
-            - ADMIN_PASSWD=password
-            - AUTH_DEV=true   # activate local oauth "dev"
-            - ADMIN_SHARED_ID=dev_user  # set admin flag for default user on local ouath2
-            - POSITIVE_SCORE=false # restricts comment's score to be only positive
-            - EDIT_TIME=5m # edit window
-            - AUTH_ANON=true
-            - AUTH_EMAIL_ENABLE=true
-        volumes:
-            - ./var:/srv/var
+    environment:
+      - REMARK_URL=http://127.0.0.1:8080
+      - SECRET=12345
+      - STORE_BOLT_PATH=/srv/var/db
+      - BACKUP_PATH=/srv/var/backupang
+      - DEBUG=true
+      - ADMIN_PASSWD=password
+      - AUTH_DEV=true # activate local oauth "dev"
+      - ADMIN_SHARED_ID=dev_user # set admin flag for default user on local ouath2
+      - POSITIVE_SCORE=false # restricts comment's score to be only positive
+      - EDIT_TIME=5m # edit window
+      - AUTH_ANON=true
+      - AUTH_EMAIL_ENABLE=true
+    volumes:
+      - ./var:/srv/var