add installation procedure in README

README.md

@@ -12,4 +12,66 @@
 - demo interact
 - demo widget
 
+## Materials requirements
+
+We will use jupyter notebook and some python libraries.
+The are 2 ways to create a suitable environment for this course:
+
+- from a python environment
+- from a conda/mamba environment
+
+But whatever your choice you need to have git installed to get the course materials
+
+
+### from virtual environment
+
+To create a python environment (to do only once)
+
+	python3 -m venv Scientific_Python
+	cd Scientific_Python
+	source bin/activate
+	git clone https://gitlab.pasteur.fr/hub-courses/scientific_python.git Scientific_Python_Course
+	cd Scientific_Python_Course
+	python -m pip install -r requirements.txt
+
+To exit from the environment
+
+	deactivate
+
+To reactivate the environment
+
+	cd Scientific_Python
+	source bin/activate
+
+	# to run jupyter notenook server
+	jupyter-lab
+	
+### from conda/mamba (recommended for windows guys)
+
+
+To create a Conda/mamba environement you have to install Conda(anaconda or miniconda) or mamba
+Then create your environement (to do only once)
+
+	mamba env create -n Scientific_Python -c conda-forge bioconda
+	conda activate Scientic_Python
+
+	# get the course materials 
+	git clone https://gitlab.pasteur.fr/hub-courses/scientific_python.git Scientific_Python_Course
+        cd Scientific_Python_Course
+	
+	# install prerequisites
+        mamba install --file requirements.txt
+
+To exit from the conda environment/mamba
+
+	conda deactivate
+
+To reactivate the environment
+
+	conda activate Scientific_Python
+	
+	# to run jupyter notebook server
+	jupyter-lab
+
+