Update the supported version policy in Operator Manual Installation d…

…oc (argoproj#15619)

The supported version policy mentioned in the operator manual installation document diverges from the official policy that is mentioned in the security policy and the release cadence.

This change brings the version policy in line by referring the readers to the release and cadence documentation to check the specified policy.

Signed-off-by: Muhammad Mooneeb Hussain <[email protected]>

docs/operator-manual/installation.md

@@ -85,20 +85,7 @@ The Argo CD can be installed using [Helm](https://helm.sh/). The Helm chart is c
 
 ## Supported versions
 
-Similar to the Kubernetes project, the supported versions of Argo CD at any given point in time are the latest patch releases for the N 
-and N - 1 minor versions.
-These Argo CD versions are supported on the same versions of Kubernetes that are supported by Kubernetes itself (normally the last 3 released versions).
-
-Essentially the Argo CD project follows the same support scheme as Kubernetes but for N, N-1 while Kubernetes supports N, N-1, N-2 versions.
-
-For example if the latest minor version of ArgoCD are 2.4.3 and 2.3.5  while supported Kubernetes versions are 1.24, 1.23 and 1.22 then the following combinations are supported:
-
-* Argo CD 2.4.3 on Kubernetes 1.24
-* Argo CD 2.4.3 on Kubernetes 1.23
-* Argo CD 2.4.3 on Kubernetes 1.22
-* Argo CD 2.3.5 on Kubernetes 1.24
-* Argo CD 2.3.5 on Kubernetes 1.23
-* Argo CD 2.3.5 on Kubernetes 1.22
+For detailed information regarding Argo CD's version support policy, please refer to the [Release Process and Cadence documentation](https://argo-cd.readthedocs.io/en/stable/developer-guide/release-process-and-cadence/).
 
 ## Tested versions