fix(compose): Use modern Compose file name (#12)

docker-compose/{{ cookiecutter.__project_slug }}/README.md

@@ -1,6 +1,6 @@
 # FIXME
 
-Search and replace all mentions of FIXME with sensible content in this file and in [docker-compose.yml](docker-compose.yml).
+Search and replace all mentions of FIXME with sensible content in this file and in [compose.yaml](compose.yaml).
 
 # {{ cookiecutter.__service_slug.capitalize() }} Docker Compose files
 
@@ -18,8 +18,8 @@ When everything's ready start {{ cookiecutter.__service_slug.capitalize() }} wit
 export COMPOSE_DIR='/opt/containers/{{ cookiecutter.__project_slug }}'
 export COMPOSE_CTX='ux_vilnius'
 export COMPOSE_PROJECT='{{ cookiecutter.__service_slug }}-'"${COMPOSE_CTX}"
-export COMPOSE_FILE="${COMPOSE_DIR}"'/docker-compose.yml'{% if cookiecutter.build == "yes" %}
-export COMPOSE_OVERRIDE="${COMPOSE_DIR%/}"'/docker-compose.override.yml'{% endif %}
+export COMPOSE_FILE="${COMPOSE_DIR}"'/compose.yaml'{% if cookiecutter.build == "yes" %}
+export COMPOSE_OVERRIDE="${COMPOSE_DIR%/}"'/compose.override.yaml'{% endif %}
 export COMPOSE_ENV=<add accordingly>
 ```
 
@@ -108,7 +108,7 @@ Create ZFS datasets and set permissions as needed.
     zfs create -p 'zpool/docker-data/{{ cookiecutter.__service_slug }}-'"${COMPOSE_CTX}"'/{{ cookiecutter.__service_slug }}/config'
 {%- endif %}
     ```
-    FIXME When changing bind mount locations to real ones remember to also update `volumes:` in [docker-compose.yml](docker-compose.yml) FIXME
+    FIXME When changing bind mount locations to real ones remember to also update `volumes:` in [compose.yaml](compose.yaml) FIXME
 
 * Create subdirs
     ```

docker-compose/{{ cookiecutter.__project_slug }}/env/fqdn_context.env.example

@@ -33,7 +33,7 @@ SUBNET=172.30.95.0/24
 
 
 
-# See 'docker-compose.override.yml' for how to make a variable available in
+# See 'compose.override.yaml' for how to make a variable available in
 # a Dockerfile
 # ---
 # EXAMPLE_ARG_FROM_ENV_FILE=must_be_available_in_dockerfile