diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -18,7 +18,21 @@
     url: http://localhost:5002/
 ```
 
-## API
+## Celery
+
+Load tarball using celery.
+
+Providing you have a properly configured celery up and running, the
+celery worker configuration file needs to be updated:
+
+*`{/etc/softwareheritage | ~/.config/swh | ~/.swh}`/worker.yml*:
+
+``` YAML
+task_modules:
+    - swh.loader.tar.tasks
+task_queues:
+    - swh_loader_tar
+```
 
 ### local
 
@@ -34,15 +48,14 @@
 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
 
-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 +65,7 @@
 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)
 ```