diff --git a/package.json b/package.json
index 72ae195..769250e 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "description": "",
   "main": "index.js",
   "scripts": {
-    "run": "env NODE_EXTRA_CA_CERTS=pki/ca_intermediate_root_bundle.pem node download_json.js"
+    "run": "mkdir -p data && cd data && env NODE_EXTRA_CA_CERTS=pki/ca_intermediate_root_bundle.pem node download_json.js"
   },
   "keywords": [],
   "author": "",
diff --git a/readme.md b/readme.md
index f0fa036..cb250d5 100644
--- a/readme.md
+++ b/readme.md
@@ -9,8 +9,13 @@ pnpm install
 ## correr
 
 ```
-pnpm run run download_json.js https://datos.gob.ar/data.json
-# guarda en ./datos.gob.ar
+# descargar portal datos.gob.ar
+pnpm run run https://datos.gob.ar/data.json
+# guarda en data/datos.gob.ar
+
+# descargar todos los portales conocidos
+pnpm run run
+# guarda en data/*
 ```
 
 ## contenedor