Fix: Install manifest version (#191)

Signed-off-by: NaveenKumar Namachivayam <[email protected]>

Author: QAInsights

website/versioned_docs/version-2.9.0/getting-started/installation.md

@@ -97,7 +97,7 @@ Visit https://docs.litmuschaos.io to find more info.
 Applying the manifest file will install all the required service account configuration and ChaosCenter.
 
 ```bash
-kubectl apply -f https://litmuschaos.github.io/litmus/2.8.0/litmus-2.8.0.yaml
+kubectl apply -f https://litmuschaos.github.io/litmus/2.9.0/litmus-2.9.0.yaml
 ```
 
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