diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@
 
 ### Preparation steps
 
-1. git clone under $GHLISTER_ROOT (of your choosing)
+1. git clone under $SWH_ENVIRONMENT_HOME/swh-lister (of your choosing)
 2. mkdir ~/.config/swh/ ~/.cache/swh/lister/github.com/
 3. create configuration file ~/.config/swh/lister-github.com.yml
 4. Bootstrap the db instance schema
@@ -61,7 +61,6 @@
     credentials: []
     cache_responses: True
     cache_dir: /home/zack/.cache/swh/lister/github.com
-
     storage:
       cls: remote
       args:
@@ -79,3 +78,47 @@
     DEBUG:urllib3.connectionpool:https://api.github.com:443 "GET /repositories?since=364 HTTP/1.1" 200 None
     DEBUG:urllib3.connectionpool:Starting new HTTP connection (1): localhost
     DEBUG:urllib3.connectionpool:http://localhost:5002 "POST /origin/add HTTP/1.1" 200 1
+
+
+## lister-gitlab
+
+### preparation steps
+
+1. git clone under $SWH_ENVIRONMENT_HOME/swh-lister (of your choosing)
+2. mkdir ~/.config/swh/ ~/.cache/swh/lister/gitlab/
+3. create configuration file ~/.config/swh/lister-gitlab.yml
+4. Bootstrap the db instance schema
+
+    $ createdb lister-gitlab
+    $ python3 -m swh.lister.cli --db-url postgres:///lister-gitlab \
+        --lister gitlab \
+        --create-tables
+
+### Configuration file sample
+
+    $ cat ~/.config/swh/lister-gitlab.yml
+    # see http://docs.sqlalchemy.org/en/latest/core/engines.html#database-urls
+    lister_db_url: postgres:///lister-gitlab
+    credentials: []
+    cache_responses: True
+    cache_dir: /home/zack/.cache/swh/lister/gitlab
+    storage:
+      cls: remote
+      args:
+        url: http://localhost:5002/
+
+### Run
+
+    $ python3
+    Python 3.6.6 (default, Jun 27 2018, 14:44:17)
+    [GCC 8.1.0] on linux
+    Type "help", "copyright", "credits" or "license" for more information.
+    >>> from swh.lister.gitlab.tasks import RangeGitLabLister; RangeGitLabLister().run_task(1, 2,
+    instance='salsa.debian.org', api_baseurl='https://salsa.debian.org/api/v4')
+    >>> from swh.lister.gitlab.tasks import RangeGitLabLister; RangeGitLabLister().run_task(1, 2,
+    instance='gitlab.freedesktop.org', api_baseurl='https://gitlab.freedesktop.org/api/v4')
+    >>> from swh.lister.gitlab.tasks import RangeGitLabLister; RangeGitLabLister().run_task(1, 2,
+    instance='gitlab.gnome.org', api_baseurl='https://gitlab.gnome.org/api/v4')
+    >>> from swh.lister.gitlab.tasks import RangeGitLabLister; RangeGitLabLister().run_task(1, 2,
+    instance='gitlab.inria.fr', api_baseurl='https://gitlab.inria.fr/api/v4')
+    >>>