Update README about instructions in already bootstrapped environments

Signed-off-by: Burak Sekili <buraksekili@gmail.com>

README.md

@@ -39,6 +39,23 @@ setting up an organization and an admin user. Additionally, it generates Kuberne
 | TYK_K8SBOOTSTRAP_TYK_ORG_ID                    | corresponds to the organisation ID that is being created.                                                                                                                                                             |
 | TYK_K8SBOOTSTRAP_TYK_DASHBOARDLICENSE          | corresponds to the license key of Tyk Dashboard.                                                                                                                                                                      |
 
+## Bootstrapped Environments
+
+
+If Tyk is already bootstrapped, the application will bypass the creation of the Tyk Organization and Admin User,
+proceeding directly with the creation of Kubernetes Secrets.
+
+Given that the Kubernetes Secrets require values for `TYK_AUTH` and `TYK_ORG`, it is essential to provide these values 
+through the respective environment variables, called `TYK_K8SBOOTSTRAP_TYK_ADMIN_AUTH` for `TYK_AUTH` and 
+`TYK_K8SBOOTSTRAP_TYK_ORG_ID` for `TYK_ORG`. 
+
+Ensure that these environment variables are set appropriately.
+
+> [!WARNING]
+> If these values are not provided, `TYK_AUTH` and `TYK_ORG` values in Kubernetes secrets will be empty string. You may
+> need to update the secret later to populate these values.
+
+
 ## Required RBAC roles for the app to work inside the Kubernetes cluster
 
 Given that the applications operate as Chart Hooks to execute specific actions, such as creating Kubernetes Secrets,