Updated readme

README.md

@@ -2,14 +2,25 @@
 
 Policies from the [Azure Monitor Baseline Alerts](https://azure.github.io/azure-monitor-baseline-alerts/welcome/) project extracted for use in [EPAC](https://aka.ms/epac).
 
-## Usage
+The definitions files are updated weekly around Thursday by deploying the solution and then extracting all the policies. 
 
-- Copy the files from the ```Definitions``` folder to your own EPAC repo.
+## Deployment Patterns
+
+- If you are following the ALZ deployment methodology use the files below to assign alerting policies to the correct scopes
+    - alerting-connectivity-policySet.jsonc
+    - alerting-identity-policySet.jsonc
+    - alerting-management-policySet.jsonc
+    - alerting-landingzone-policySet.jsonc
+    - alerting-servicehealth-policySet.jsonc
+    - notification-assets-policySet.jsonc
+- Copy the files from the ```Definitions``` folder to your own EPAC repo and delete any assignment files that aren't listed above. See below for how to use these files for non ALZ aligned environments. 
 - Adjust the following fields in the assignment files to suit your environment.
     - ```scope```
     - ```managedIdentityLocations```
     - ```parameters```
 
+- If you are not following the ALZ structure and want to deploy alerts for a single group of services e.g. Key Vault - then deploy the matching policy assignment. In the case of Key Vault you would deploy ```alerting-keymanagement-policySet.jsonc```
+
 ## Caveats
 
 - Policies are tested by the owners of the AMBA repositories - for issues with the policies or assignments please refer to the original [project](hhttps://github.com/Azure/azure-monitor-baseline-alerts).