Update barclamp.md
Update barclamp.md

Replaced fenced code blocks that don't render in the CB help UI with <pre> tables.
toabctl/crowbar,mmnelemane/crowbar,dirkmueller/crowbar,MaximilianMeister/crowbar,rhafer/crowbar,tserong/crowbar,SUSE-Cloud/crowbar,toabctl/crowbar,rsalevsky/crowbar,MaximilianMeister/crowbar,SUSE-Cloud/crowbar,nkrinner/crowbar,aspiers/crowbar,rsalevsky/crowbar,vwallfahrer/crowbar,aplanas/crowbar,dirkmueller/crowbar,aplanas/crowbar,aspiers/crowbar,rhafer/crowbar,crowbar/crowbar,tserong/crowbar,rhafer/crowbar,mmnelemane/crowbar,vwallfahrer/crowbar,crowbar/crowbar,nkrinner/crowbar