Update ssh-key-management.md

docs.it4i/general/accessing-the-clusters/shell-access-and-data-transfer/ssh-key-management.md

@@ -61,11 +61,11 @@ Private-Lines: 1
 Private-MAC: dc3f83cef42026a2038f28e96f87367d762e72265621d82e2fe124634ec3c905
 ```
 
-### Example of RSA Public Key Format
+## Public Key
 
 A public key file in the `*.pub` format is present on the remote side and allows an access to the owner of the matching private key.
 
-An example of public key format:
+### Example of RSA Public Key Format
 
 ```console
 ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCpujuOiTKCcGkbbBhrk0Hjmezr5QpM0swscXQE7fOZG0oQSURoapd9tjC9eVy5FvZ339jl1WkJkdXSRtjc2G1U5wQh77VE5qJT0ESxQCEw0S+CItWBKqXhC9E7gFY+UyP5YBZcOneh6gGHyCVfK6H215vzKr3x+/WvWl5gZGtbf+zhX6o4RJDRdjZPutYJhEsg/qtMxcCtMjfm/dZTnXeafuebV8nug3RCBUflvRb1XUrJuiX28gsd4xfG/P6L/mNMR8s4kmJEZhlhxpj8Th0iIc+XciVtXuGWQrbddcVRLxAmvkYAPGnVVOQeNj69pqAR/GXaFAhvjYkseEowQao1 username@organization.example.com