Adding readme to examples (#374)

examples/README.md

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+# Example ARM templates for Enterprise-scale landing zones
+
+This isn't yet another example ARM template library. This folder contains **only** ARM templates for organizations to deploy platform resources. We accept contribution for all ARM templates include platform resources. Platform resource in the context of Enterprise-scale are deployed primarily to tenant and management group scope.
+
+How-to documentation to deploy these templates using a platform CI/CD pipeline AzOps:  
+
+- [Deploy your own ARM templates with AzOps GitHub Actions](../docs/Deploy/deploy-new-arm.md)
+- [Enable Service Principal to create landing zones](../docs/Deploy/enable-subscription-creation.md)
+- [Landing zone creation](./landing-zones)