Update README.md

README.md

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-# terraform-vsphere-appx
+# vSphere AppX Module
+
+This is an example module to demonstrate how you could use modules to provision VMs for applications.
+
+## Example
+
+```
+
+module "appx" {
+  source  = "ptfe.this-demo.rocks/SE_Org/appx/vsphere"
+  version = "1.1"
+  
+  vm_name = "applicationx"
+  cpu_count = "2"
+  memory = "1024"
+  tag_name = "Staging"
+  disk_size = "35"
+  vm_count = "2"
+  
+}
+
+```
+
+Required variables are:
+ * *vm_name*
+ * *vm_count*