Add docker-compose start alias 'dcstart' (#6675)

plugins/docker-compose/docker-compose.plugin.zsh

@@ -22,3 +22,4 @@ alias dcdn='docker-compose down'
 alias dcl='docker-compose logs'
 alias dclf='docker-compose logs -f'
 alias dcpull='docker-compose pull'
+alias dcstart='docker-compose start'