chore(readme): update readme with azure policy pack

Author: tyler-dunkel

README.md

@@ -200,9 +200,10 @@ cg init aws azure gcp k8s
 And add in compliance policy packs to supplement your data with instant security insights:
 
 ```bash
-# Currently we support AWS CIS 1.2 and GCP CIS 1.2 but Azure and K8s are coming soon.
+# Currently we support AWS CIS 1.2, GCP CIS 1.2, and Azure CIS 1.3.1 but more (pci, NIST, K8S NSA_CISA) are coming soon.
 cg policy add aws-cis-1.2.0
 cg policy add gcp-cis-1.2.0
+cg policy add aws-cis-1.3.1
 ```
 
 You can find a list of currently supported policy packs in the [Policy Packs repo](https://github.com/cloudgraphdev/cloudgraph-policy-packs)