change 'sliver_quota' to 'silver_quota' in managing-cf/quota-plans.html
change 'sliver_quota' to 'silver_quota' in managing-cf/quota-plans.html

cloudfoundry/docs-running-cf,Orange-OpenSource/docs-running-cf,Gerg/docs-running-cf,bridgetkromhout/docs-running-cf,cwest/docs-running-cf