Edit README.md - add shields (#7)

Co-authored-by: eviatars <eviatars@checkpoint.com>

Author: chkp-eddiek

README.md

@@ -1,4 +1,9 @@
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+![GitHub Wachers](https://img.shields.io/github/watchers/CheckPointSW/terraform-vmware-cloudguard-network-security)
+![GitHub Release](https://img.shields.io/github/v/release/CheckPointSW/terraform-vmware-cloudguard-network-security)
+![GitHub Commits Since Last Commit](https://img.shields.io/github/commits-since/CheckPointSW/terraform-vmware-cloudguard-network-security/latest/master)
+![GitHub Last Commit](https://img.shields.io/github/last-commit/CheckPointSW/terraform-vmware-cloudguard-network-security/master)
+![GitHub Repo Size](https://img.shields.io/github/repo-size/CheckPointSW/terraform-vmware-cloudguard-network-security)
+![GitHub Downloads](https://img.shields.io/github/downloads/CheckPointSW/terraform-vmware-cloudguard-network-security/total)
 
 # Terraform Modules for CloudGuard Network Security (CGNS) — VMware (by Broadcom)