--- /dev/null
+Hi,
+
+This document is only made for newcomers in Jirafeau who are digging into
+the code.
+
+Here is a little explaination of Jirafeau's arboresence in a simplified
+view only to show the most importants files and their role.
+
+.
+├── admin.php : adminitration interface, also permits to download files
+├── f.php : permits to download files or show the download page
+├── index.php : only provide a html/javascript client to interact with API
+├── script.php : API interface and it's html documentation
+├── install.php : installation script
+├── tos.php : terms of use the user may edit
+├── lib
+│ ├── config.local.php : user's parameters
+│ ├── config.original.php : default parameters with their documentation
+│ ├── functions.js : javascript functions for html/javascript client
+│ ├── functions.php : core functions and tools of jirafeau
+│ ├── lang : langage folder, contain all langage files
+│ └── template
+│ ├── footer.php
+│ └── header.php
+├── media : folder containing all skins
+└── var-xxxxxxx : folder containing all data
+ ├── async : chunks of uploaded files
+ ├── files : all files that has been successfully uploaded
+ └── links : all links pointing to files with meta-informations
+
--- /dev/null
+Any project would be sad without it's README file :)
+
+Jirafeau is a web site permitting to upload a file in a simple way and give
+an unique link to it.
+
+Jirafeau is an Open-Source project under AGPL v3 license (see COPYING file)
+
+To install Jirafeau project, just open your browser and go to /install.php
+
+For more informations on Jirafeau project, go to it's web page:
+
+https://gitlab.com/mojo42/Jirafeau/wikis/home