README: add minimal list of packages to install on Ubuntu

Author: pillo79

README.md

@@ -106,7 +106,12 @@ mkdir my_new_zephyr_folder && cd my_new_zephyr_folder
 git clone https://github.com/arduino/ArduinoCore-zephyr
 ```
 ### Pre-requirements
-Before running the installation script, ensure that `python3` and `pip` are installed on your system. The script will automatically install `west` and manage the necessary dependencies.
+Before running the installation script, ensure that Python, `pip` and `venv` are installed on your system. The script will automatically install `west` and manage the necessary dependencies.
+
+On Ubuntu or similar `apt`-based distros, make sure to run the following command:
+```bash
+sudo apt install python3-pip python3-setuptools python3-venv build-essential git cmake ninja-build zstd jq
+```
 
 ### Run the ```bootstrap``` script
 ```bash