i have addd sshkey of my server in github code example
Example: add ssh key to github
### ADD SSH key to Github ###
# Check if you have a key?
ssh-add -l
# If not? then follow steps to generate key
ssh-keygen -t rsa -b 4096 -C your__gmail
# Now for copy the key use xclip tool or just goto file and copy
sudo apt install xclip
xclip -sel clip < ~/.ssh/id_rsa.pub
# Now goto github.com and goto settings
# select SSH and GPG keys
# New SSH key
# Enter "your__choice__name" in title field...
# Paste your public key into the Key field
# Click Add SSH key
DONE!!!