diff --git a/README.md b/README.md
index 74f75a2..e980375 100644
--- a/README.md
+++ b/README.md
@@ -5,30 +5,36 @@ EMSL_Basis_Set_Exchange_Local
 Create of Local Copy of the famous [EMSL Basis Set Exchange](https://bse.pnl.gov/bse/portal) and use it easily with the API.
 
 * Make a slight copy (40Mo Sqlite3 database) of the EMSL Basis Set Exchange website (One database for all the basis set of one format);
-* API for scripting ;  
-* Quick local access without delay ;
+* API for scripting;  
+* Quick local access without delay;
 * Only need [Python](https://www.python.org/) and [Request](http://docs.python-requests.org/en/latest/) module.
 
 ##Dependancy
 * Python >2.6
-* Request ```pip install requests```
+* Request ```pip install requests``` (in a virtual env or with sudo)
 
 ##Installation
 * Download the git (```$ git clone https://github.com/TApplencourt/EMSL_Basis_Set_Exchange_Local.git``` for example)
-* ```cd``` into & run ```$ ./setup.py```
-* ```source EMSL_api.rc```
-* Done ! You can now, use ```EMSL_api.py``` or use all the python fonction inside ```./src```
+* Done ! You can now, use ```EMSL_api.py```
 
 ##Usage
 ```
 EMSL Api.
 
 Usage:
-  EMSL_api.py get_list_basis <db_path>
-  EMSL_api.py get_list_elements <db_path> <basis_name>
-  EMSL_api.py get_basis_data <db_path> <basis_name> <elts>...
-  EMSL_api.py get_list_formats
-  EMSL_api.py create_db <db_path> <format> [--no-contraction]
+  EMSL_api.py list_basis        [--atom=<atom_name>...]
+                                [--db_path=<db_path>]
+  EMSL_api.py list_atoms  --basis=<basis_name>
+                                [--db_path=<db_path>]
+  EMSL_api.py get_basis_data --basis=<basis_name>
+                                [--atom=<atom_name>...]
+                                [--db_path=<db_path>]
+                                [--with_l]
+                                [(--save [--path=<path>])]
+  EMSL_api.py list_formats
+  EMSL_api.py create_db      --db_path=<db_path>
+                             --format=<format>
+                             [--no-contraction]
   EMSL_api.py (-h | --help)
   EMSL_api.py --version
 
@@ -38,7 +44,13 @@ Options:
   --no-contraction  Basis functions are not contracted
 
 <db_path> is the path to the SQLite3 file containing the Basis sets.
+By default is $EMSL_API_ROOT/db/Gausian_uk.db
 ```
+##Demonstration
+
+![](http://fat.gfycat.com/WelcomePerkyChrysomelid.gif)
+
+(For a beter quality see the [Source](https://asciinema.org/api/asciicasts/15380))
 
 ##To do
 For now  we can only parse Gaussian-US basis set type file. (Look at ```./src/EMSL_utility.py#EMSL_dump.basis_data_row_to_array```)