Included the difference between Cluster and Namespace mode installations'

Signed-off-by: Gbadebo Bello <gbahdeybohbello@gmail.com>

Author: Gbahdeyboh

website/docs/litmus-installation-cluster.md

@@ -7,6 +7,10 @@ sidebar_label: Control Plane (Cluster Mode)
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 <iframe width="560" height="315" src="https://www.youtube.com/embed/rOrKegj5ePI" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
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+Installing Litmus in cluster mode gives Litmus access to cluster wide resources. Here, the CRDs are installed directly on the cluster.
 
 ## Pre-requisites
 

website/docs/litmus-installation-namespace.md

@@ -7,6 +7,10 @@ sidebar_label: Control Plane (Namespace Mode)
 ---
 
 <iframe width="560" height="315" src="https://www.youtube.com/embed/rOrKegj5ePI" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
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+<br />
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+Installing Litmus in namespace mode limits Litmus access to a particluar namespace. Here, you need to create a namespace where Litmus CRDs would be installed directly. This namespace will be specified during the installation step.
 
 ## Pre-requisites