Installations

sudo mkdir -p /usr/share/wordlists
cd /usr/share/wordlists/
sudo git clone https://github.com/freelancermijan/my-payloads.git
cd

Updation

cd /usr/share/wordlists/my-payloads/
sudo git pull
cd

If failed to update then try:

git config --global --add safe.directory /usr/share/wordlists/my-payloads