add more details in README file

README.md

-# shiny-k8s-example
+# Branch "base-python" - Project shiny-k8s-example
+
+## Definition
+
+Use this branch if your Shiny app is developed in Python language.\
+This branch contains all the configuration files requiered for host and deploy your app.\
+Please respect the folder structure.
+
+## Branch structure
+
+```ini
+base-python
+├── chart                           ## Folder containing configuration files for deployment on kubernetes
+│   ├── charts
+│   ├── Chart.yaml
+│   ├── templates
+│   ├── values.prod.yaml
+│   └── values.yaml
+├── docker-compose-for-prod         ## Folder containing configuration files for deployment on other hosting system
+│   ├── data
+│   ├── docker-compose.yaml
+│   ├── logs
+│   ├── persistent
+│   └── README.md
+├── docker-compose.yaml            ## File to run localy your app
+├── Dockerfile                     ## File to containerize your app
+├── LICENSE
+├── logs                           ## Folder for logs files
+├── my_project                     ## Folder containing your shiny app including python, CSS files and input data
+│   ├── app.py
+│   ├── data                       ## Folder containing input data used in your app
+│   └── www                        ## Folder containing output data, CSS style file, images, ... used in your app
+│       └── persistent             ## Folder containing persitent data (optionnal)
+├── README.md
+└── requirements.txt               ## File listing python packages required for your app
+```
+
+Following to the [Documentation](https://hub.pages.pasteur.fr/shiny-k8s/), please adapt this folder to needs of your Python Shiny app.\
+
+# Project
+
+## Definition
 
 This project is a satellite project containing example(s) on how to use components developped in [hub/shiny-k8s](https://gitlab.pasteur.fr/hub/shiny-k8s).
 
-* The base example with R language is the branch [base-r](https://gitlab.pasteur.fr/hub/shiny-k8s-example/-/tree/base-r?ref_type=heads)
-* The base example with Python is the branch [base-python](https://gitlab.pasteur.fr/hub/shiny-k8s-example/-/tree/base-python?ref_type=heads)
+- The base example with R language is the branch [base-r](https://gitlab.pasteur.fr/hub/shiny-k8s-example/-/tree/base-r?ref_type=heads)
+- The base example with Python is the branch [base-python](https://gitlab.pasteur.fr/hub/shiny-k8s-example/-/tree/base-python?ref_type=heads)
 
 For more information, see [Documentation](https://hub.pages.pasteur.fr/shiny-k8s/).
 
-# Developpers
+## Project structure
 
-The branch [base-common](https://gitlab.pasteur.fr/hub/shiny-k8s-example/-/tree/base-common?ref_type=heads) contains material common to base-r and base-python.
+This project use orphan branch concept [^1] to manage the different ressources using according to the usage.
 
-# Scripts
+```ini
+shiny-k8s
+  ├── main
+  ├── base-common
+  │   ├── base-r
+  │   └── base-python
+  ├── advanced-scripts
+  └── doc-trigger
+```
 
-Scripts for different category of users can be found in branch [advanced-scripts](https://gitlab.pasteur.fr/hub/shiny-k8s-example/-/tree/advanced-scripts).
\ No newline at end of file
+[^1]: [git definition](https://git-scm.com/docs/git-checkout/2.14.6#Documentation/git-checkout.txt---orphanltnewbranchgt)