github, add public key for ssh


//=== add public key to github

* gitbash on local computer
$ cd ~/.ssh
$ ls
config id_rsa id_rsa.pub known_hosts

$ cat id_rsa.pub > pub.txt
$ notepad pub.txt

* open browser
login into github.com website
--> click 'gear' icon on the top right menu
--> left side "SSH keys"

copy the contents of pub.txt
* not to wrap the line