docs: update README with outliner features and add curl one-liner installer

docker-compose.yml

@@ -1,8 +1,5 @@
 services:
   mindsift:
-    build:
-      context: .
-      dockerfile: Dockerfile
     image: git.dsit.me/sandrodach/mindsift:dev
     container_name: mindsift
     restart: unless-stopped