diff --git a/README.md b/README.md
index c9a255a..0b72faf 100644
--- a/README.md
+++ b/README.md
@@ -17,11 +17,71 @@ Create a backup before running any command and double check all your operations.
 
 ## Installation
 
+As a pre-requesite, you need a recent version of [Go](golang.org/).
+
 ```
 go get git.deuxfleurs.fr/quentin/seafile_recovery
 ~/go/bin/seafile_recovery --help
 ```
 
+## Tutorial
+
+Let's suppose you start by knowing nothing about your storage folder and its repositories,
+start by picking one repository ID in the `storage/commits` folder and run the `head` subcommand. For our example,
+we will use `0011d396-4890-463a-8266-bcbd978d8d1c`.
+
+```
+$ seafile_recovery head 0011d396-4890-463a-8266-bcbd978d8d1c
+2021/04/28 15:10:34 Repo contains 6 commits
+2021/04/28 15:10:34 Repo has 1 sources
+2021/04/28 15:10:34 Repo has 1 sinks
+2021/04/28 15:10:34 Proposing following HEAD:
+RootId: 5911dd2d363f591e43df4e80591d0a54975f2aaf
+CreatorName: quentin@example.com
+Creator: 0000000000000000000000000000000000000000
+Description: Added "telecom-reclaimed-web-single-page.pdf".
+Ctime: 2021-04-26 12:22:59 +0200 CEST
+RepoName: Ma bibliothèque
+RepoDesc: Ma bibliothèque
+```
+
+We know learnt some information about the repository, especially its name ("Ma bibliothèque"), who did the last change ("quentin@example.com") and the RootId ("5911dd2d363f591e43df4e80591d0a54975f2aaf").
+
+We can now explore its last file hierarchy thanks to the RootId (we can only copy a part of the Id to keep the command more readable):
+
+```
+$ seafile_recovery ls 0011d396-4890-463a-8266-bcbd978d8d1c --dir=5911dd2
+2021/04/28 15:15:40 5911dd /
+2021/04/28 15:15:40 b88ab9 /seafile-tutorial.doc
+2021/04/28 15:15:40 d24616 /Capture d’écran de 2021-04-11 23-07-31.png
+2021/04/28 15:15:40 f123de /My Folder/
+2021/04/28 15:15:40 15be4d /My Folder/telecom-reclaimed-web-single-page.pdf
+2021/04/28 15:15:40 380a0e /My Folder/Capture d’écran vidéo de 19-12-2020 10:30:15.webm
+2021/04/28 15:15:40 Total size: 25.6M
+```
+
+Now, let's suppose I want to extract the folder "My Folder" and its content and put it in a folder named `out`:
+
+```
+$ ~/go/bin/seafile_recovery cp 0011d396-4890-463a-8266-bcbd978d8d1c --dir=f123de ./out
+2021/04/28 15:17:28 f123de /
+2021/04/28 15:17:28 15be4d /telecom-reclaimed-web-single-page.pdf
+2021/04/28 15:17:28 380a0e /Capture d’écran vidéo de 19-12-2020 10:30:15.webm
+$ ls out/
+'Capture d’écran vidéo de 19-12-2020 10:30:15.webm'   telecom-reclaimed-web-single-page.pdf
+```
+
+Finally, if I prefer to upload this content directly on a S3 bucket, you can do:
+
+```
+$ ~/go/bin/seafile_recovery cp 0011d396-4890-463a-8266-bcbd978d8d1c --dir=f123de s3://ACCESS_KEY:SECRET_KEY@ENDPOINT/REGION/BUCKET[/PREFIX]
+2021/04/28 15:17:28 f123de /
+2021/04/28 15:17:28 15be4d /telecom-reclaimed-web-single-page.pdf
+2021/04/28 15:17:28 380a0e /Capture d’écran vidéo de 19-12-2020 10:30:15.webm
+```
+
+**Be careful !** This tool is not intended to change your seafile backend from local filesystem to the S3 backend. Migrating to the S3 backend implies to keep Seafile's objects which is a totally different job. Appropriate scripts are available from Seafile's official distribution.
+
 ## Usage
 
 ```
@@ -44,7 +104,6 @@ Options:
 
 ## Seafile on-disk storage
 
-
 ```
  storage/commits/(repoid)           storage/fs/(repoid)          storage/blocks/(repoid)
     (plain text json)                  (json + zlib)               (chunk of raw data)
@@ -72,8 +131,6 @@ Initial│69/ca6b5..├──────────?          └────
             X no parent
 ```
 
-## Tutorial
-
 
 ----