Terraform | Integrated new GCP Terraform Registry references

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

Author: chkp-eddiek

terraform/README.MD

@@ -1,12 +1,15 @@
-# ⚠️ Azure and AWS Directories are Deprecated  
-Azure and AWS directories are now officially deprecated. All future development and maintenance will take place in new repositories.  
+# ⚠️ Azure, AWS and GCP Directories are Deprecated
+Azure, AWS and GCP directories are now officially deprecated. All future development and maintenance will take place in new repositories.  
 
-### 📌 New Repository and Modules  
+### 📌 New Repository and Modules
 All updates and improvements are now available in the [Admin Guide](https://support.checkpoint.com/results/sk/sk183294) and the links below:
 
-#### AWS  
+#### AWS
 - [Terraform Registry](https://registry.terraform.io/modules/CheckPointSW/cloudguard-network-security/aws/latest) 
 - [GitHub](https://github.com/CheckPointSW/terraform-aws-cloudguard-network-security)
-#### Azure 
+#### Azure
 - [Terraform Registry](https://registry.terraform.io/modules/CheckPointSW/cloudguard-network-security/azure/latest) 
-- [GitHub](https://github.com/CheckPointSW/terraform-azure-cloudguard-network-security)
+- [GitHub](https://github.com/CheckPointSW/terraform-azure-cloudguard-network-security)
+#### GCP
+- [Terraform Registry](https://registry.terraform.io/modules/CheckPointSW/cloudguard-network-security/gcp/latest) 
+- [GitHub](https://github.com/CheckPointSW/terraform-gcp-cloudguard-network-security)