Make yaml formatting consistent

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

yourls/docker-compose.yml

@@ -5,12 +5,12 @@ services:
         image: registry.karaolidis.com/nikas36/yourls-plugins
         restart: unless-stopped
         environment:
-            - 'YOURLS_DB_HOST=db:3306'
-            - 'YOURLS_DB_USER=yourls'
-            - 'YOURLS_DB_PASS=yourls'
-            - 'YOURLS_SITE=${YOURLS_URL}'
-            - 'YOURLS_USER=${YOURLS_USER}'
-            - 'YOURLS_PASS=${YOURLS_PASS}'
+            YOURLS_DB_HOST: db:3306
+            YOURLS_DB_USER: yourls
+            YOURLS_DB_PASS: yourls
+            YOURLS_SITE: ${YOURLS_URL}
+            YOURLS_USER: ${YOURLS_USER}
+            YOURLS_PASS: ${YOURLS_PASS}
         networks:
             - default
             - routing
@@ -21,13 +21,13 @@ services:
         image: mysql
         restart: unless-stopped
         volumes:
-            - '/home/nick/configs/yourls:/var/lib/mysql'
+            - /home/nick/configs/yourls:/var/lib/mysql
         environment:
-            - 'MYSQL_RANDOM_ROOT_PASSWORD=yes'
-            - 'MYSQL_USER=yourls'
-            - 'MYSQL_PASSWORD=yourls'
-            - 'MYSQL_DATABASE=yourls'
-        user: '1000:1000'
+            MYSQL_RANDOM_ROOT_PASSWORD: yes
+            MYSQL_USER: yourls
+            MYSQL_PASSWORD: yourls
+            MYSQL_DATABASE: yourls
+        user: 1000:1000
 
 networks:
     routing: