Add ssh-agent to the plugins list and save:
`vim ~/.zshrc`
`plugins=(git ssh-agent)`
You may want to immediately reload your .zshrc settings:
`source ~/.zshrc`
Running ssh-agent
```
eval `ssh-agent`
```
ssh-agent kill
`ssh-agent -k`
Checking if key are added
`ssh-add -l`
Adding key
`ssh-add ~/.ssh/XXX_id_rsa`