4.21/main Health Check, please don't merge this!

Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>

Author: DaanHoogland

README.md

@@ -54,7 +54,7 @@
 
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-Apache CloudStack is open source software designed to deploy and manage large
+Apache CloudStack is open-source software designed to deploy and manage large
 networks of virtual machines, as a highly available, highly scalable
 Infrastructure as a Service (IaaS) cloud computing platform. CloudStack is used
 by a number of service providers to offer public cloud services, and by many