updated readme

README.md

@@ -1,5 +1,35 @@
 # Hiperwind PhD 2023 Summer School
+
+## Cloning the repository
+You can simply clone the repo via git: 
+```
+git clone https://github.com/Hiperwind/PhDSchool.git
+```
+
 ## Installation 
+We recommend the installation of a Python 3.10 virtual environment. You can do so via:
+* Conda (recommended)
+```
+conda create -n "hiperwind" python=3.10
+```
+* venv (this option requires a prior Python installation)
+```
+python -m venv /path_to_new_virtual_environment
+```
+You can then pip install the required packages:
+```
+pip install -r requirements.txt
+```
+
+## Activate the virtual environment 
+* Conda (recommended)
+```
+conda activate hiperwind
+```
+* venv 
+```
+source /path_to_new_virtual_environment/bin/activate
+```
 
 ## Main tutorials