diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,14 +1,16 @@
 # SWH Tarball Loader
 
-The Software Heritage Tarball Loader is in charge of ingesting the
-directory representation of the tarball into the Software Heritage
-archive.
+The Software Heritage Tarball Loader is in charge of ingesting the directory
+representation of the tarball into the Software Heritage archive.
 
-## Configuration
+## Sample configuration
 
-This is the loader's (or task's) configuration file.
+The loader's configuration will be taken from the default configuration file:
+`~/.config/swh/loader/tar.yml` (you can choose a different path by setting the
+`SWH_CONFIG_FILENAME` environment variable).
 
-*`{/etc/softwareheritage | ~/.config/swh | ~/.swh}`/loader/tar.yml*:
+This file holds information for the loader to work, including celery
+configuration:
 
 ```YAML
 working_dir: /home/storage/tmp/
@@ -16,11 +18,14 @@
   cls: remote
   args:
     url: http://localhost:5002/
+celery:
+task_modules:
+    - swh.loader.tar.tasks
+task_queues:
+    - swh.loader.tar.tasks.LoadTarRepository
 ```
 
-## API
-
-### local
+### Local
 
 Load local tarball directly from code or python3's toplevel:
 
@@ -34,15 +39,14 @@
 import logging
 logging.basicConfig(level=logging.DEBUG)
 
-from swh.loader.tar.tasks import LoadTarRepository
-l = LoadTarRepository()
-l.run_task(origin=origin, visit_date=visit_date,
-	       last_modified=last_modified)
+from swh.loader.tar.tasks import load_tar
+load_tar(origin=origin, visit_date=visit_date,
+         last_modified=last_modified)
 ```
 
-### remote
+### Remote
 
-Load remote tarball is the same sample
+Load remote tarball is the same sample:
 
 ```Python
 url = 'https://ftp.gnu.org/gnu/8sync/8sync-0.1.0.tar.gz'
@@ -52,8 +56,7 @@
 import logging
 logging.basicConfig(level=logging.DEBUG)
 
-from swh.loader.tar.tasks import LoadTarRepository
-l = LoadTarRepository()
-l.run_task(origin=origin, visit_date=visit_date,
-	       last_modified=last_modified)
+from swh.loader.tar.tasks import load_tar
+load_tar(origin=origin, visit_date=visit_date,
+         last_modified=last_modified)
 ```