[web app prototyping with GCP] 4. Install Python & Git on the VM instances

1. Open an SSH connection to the VM

2. Run command line 

# 1. Update APT repository
sudo apt update

# 2. Install Git
sudo apt install git

# 3. Install Python
sudo apt update
sudo apt install python3 python3-dev python3-venv

# 4. Install Python package management
sudo apt-get install wget
wget https://bootstrap.pypa.io/get-pip.py
sudo python3 get-pip.py