fix(fabric): add leaf number variable (#11)

documentation/CookBook.md

@@ -9,10 +9,24 @@
 
 ### Popule data in Netbox
 
-Generate a Netbox token via webui and execute the python script
+Generate a Netbox token via webui and execute the python script, and on utilities folder start population :
 
 ```bash
-python import.py http://localhost:8080 YOUR_NETBOX_TOKEN device_model.yml subnets.yml
+uv run import.py http://localhost:8080 YOUR_TOKEN Devices/devices_model.yml
 ```
 
 ## Create Fabric
+
+```bash
+uv run Create_Fabric/main.py
+NetBox URL: http://localhost:8080                   
+NetBox API Token: 
+Number of buildings (1-5): 4
+Spine device type slug: ceos
+Leaf device type slug: ceos
+Access switch device type slug: ceos
+
+Existing Sites:
+  1. Paris (slug=paris)
+Choose site number or 'new': 1
+```