Added availability
Added availability

I added " ### Available starting from IBM BigFix version 9.5.5." as requested by RTC defect https://rtc3srv1.tivlab.raleigh.ibm.com:9443/ccm/web/projects/BigFix%20Platform#action=com.ibm.team.workitem.viewWorkItem&id=146032 

Please ensure that this change is ported also on the internal beta site. Thanks. Ciao
bigfix/developer.bigfix.com,bigfix/developer.bigfix.com,bigfix/developer.bigfix.com