fix(compose-ng.sls): fix salt-lint errors

```bash
Examining docker/compose-ng.sls of type state
[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:13
{{id}}:

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:17
{{id}} image:

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:22
    - name: {{image[0]}}

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:23
    - tag: {{image[1]}}

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:25
    - name: {{container.image}}

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:28
{{id}} container:

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:40
    - name: {{id}}

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:41
    - image: {{container.image}}

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:43
    - command: {{container.command}}

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:48
        - {{variable}}: {{value}}

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:57
      - "{{mapping[0]}}"

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:59
      - "{{mapping[-1]}}/tcp":

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:60
            HostPort: "{{mapping[-2]}}"

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:61
            HostIp: "{{mapping[-3]|d('')}}"

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:64
      - {{port_mapping}}

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:71
      - {{volume}}

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:78
      - {{volume}}

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:86
        {{name}}: {{alias}}

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:92
        Name: {{policy[0]}}

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:94
        MaximumRetryCount: {{policy[1]}}

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:99
      - docker_image: {{id}}

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:101
      - docker: {{id}} image

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:106
      - docker_image: {{containerid}}

[206] Jinja variables should have spaces before and after: {{ var_name }}
docker/compose-ng.sls:108
      - docker: {{containerid}}
```

docker/compose-ng.sls

@@ -10,22 +10,22 @@ include:
   {%- set id = container.container_name|d(name) %}
   {%- set required_containers = [] %}
     {%- if grains['saltversioninfo'] >= [2017, 7, 0]  %}
-{{id}}:
+{{ id }}:
   docker_image.present:
     - force: {{ docker.containers.force_present }}
     {%- else %}
-{{id}} image:
+{{ id }} image:
   docker.pulled:
     {%- endif %}
   {%- if ':' in container.image %}
     {%- set image = container.image.split(':',1) %}
-    - name: {{image[0]}}
-    - tag: {{image[1]}}
+    - name: {{ image[0] }}
+    - tag: {{ image[1] }}
   {%- else %}
-    - name: {{container.image}}
+    - name: {{ container.image }}
   {%- endif %}
 
-{{id}} container:
+{{ id }} container:
      {%- if grains['saltversioninfo'] >= [2017, 7, 0] %}
   docker_container.running:
     - skip_translate: {{ docker.containers.skip_translate }}
@@ -37,15 +37,15 @@ include:
   docker.running:
        {%- endif %}
      {%- endif %}
-    - name: {{id}}
-    - image: {{container.image}}
+    - name: {{ id }}
+    - image: {{ container.image }}
   {%- if 'command' in container %}
-    - command: {{container.command}}
+    - command: {{ container.command }}
   {%- endif %}
   {%- if 'environment' in container and container.environment is iterable %}
     - environment:
     {%- for variable, value in container.environment.items() %}
-        - {{variable}}: {{value}}
+        - {{ variable }}: {{ value }}
     {%- endfor %}
   {%- endif %}
   {%- if 'ports' in container and container.ports is iterable %}
@@ -54,58 +54,58 @@ include:
       {%- if port_mapping is string %}
         {%- set mapping = port_mapping.split(':',2) %}
         {%- if mapping|length < 2 %}
-      - "{{mapping[0]}}"
+      - "{{ mapping[0] }}"
         {%- else %}
-      - "{{mapping[-1]}}/tcp":
-            HostPort: "{{mapping[-2]}}"
-            HostIp: "{{mapping[-3]|d('')}}"
+      - "{{ mapping[-1] }}/tcp":
+            HostPort: "{{ mapping[-2] }}"
+            HostIp: "{{ mapping[-3]|d('') }}"
         {%- endif %}
       {%- elif port_mapping is mapping %}
-      - {{port_mapping}}
+      - {{ port_mapping }}
       {%- endif %}
     {%- endfor %}
   {%- endif %}
   {%- if 'volumes' in container %}
     - volumes:
     {%- for volume in container.volumes %}
-      - {{volume}}
+      - {{ volume }}
     {%- endfor %}
   {%- endif %}
   {%- if 'volumes_from' in container %}
     - volumes_from:
     {%- for volume in container.volumes_from %}
       {%- do required_containers.append(volume) %}
-      - {{volume}}
+      - {{ volume }}
     {%- endfor %}
   {%- endif %}
   {%- if 'links' in container %}
     - links:
     {%- for link in container.links %}
       {%- set name, alias = link.split(':',1) %}
       {%- do required_containers.append(name) %}
-        {{name}}: {{alias}}
+        {{ name }}: {{ alias }}
     {%- endfor %}
   {%- endif %}
   {%- if 'restart' in container %}
     - restart_policy:
     {%- set policy = container.restart.split(':',1) %}
-        Name: {{policy[0]}}
+        Name: {{ policy[0] }}
     {%- if policy|length > 1 %}
-        MaximumRetryCount: {{policy[1]}}
+        MaximumRetryCount: {{ policy[1] }}
     {%- endif %}
   {%- endif %}
     - require:
          {%- if grains['saltversioninfo'] >= [2017, 7, 0] %}
-      - docker_image: {{id}}
+      - docker_image: {{ id }}
          {%- else %}
-      - docker: {{id}} image
+      - docker: {{ id }} image
          {%- endif %}
   {%- if required_containers is defined %}
     {%- for containerid in required_containers %}
          {%- if grains['saltversioninfo'] >= [2017, 7, 0] %}
-      - docker_image: {{containerid}}
+      - docker_image: {{ containerid }}
          {%- else %}
-      - docker: {{containerid}}
+      - docker: {{ containerid }}
          {%- endif %}
     {%- endfor %}
   {%- endif %}