Added the library use cases to the long description
Added the library use cases to the long description

haeygen/SSHLibrary,junousia/SSHLibrary,garybehrend/robotframework-sshlibrary,jussimalinen/SSHLibrary,junousia/SSHLibrary,haeygen/SSHLibrary,jussimalinen/SSHLibrary,garybehrend/robotframework-sshlibrary