Update README.md

Author: KwokHing

README.md

@@ -1,2 +1,24 @@
-# GSP345-Automating-Infrastructure-on-Google-Cloud-with-Terraform-Challenge-Lab
-Automating Infrastructure on Google Cloud with Terraform: Challenge Lab (GSP345)
+## Automating Infrastructure on Google Cloud with Terraform: Challenge Lab (GSP345)
+
+====================== Setup : Create the configuration files ======================
+Make the empty files and directories in Cloud Shell or the Cloud Shell Editor.
+------------------------------------------------------------------------------------
+
+```
+touch main.tf
+touch variables.tf
+mkdir modules
+cd modules
+mkdir instances
+cd instances
+touch instances.tf
+touch outputs.tf
+touch variables.tf
+cd ..
+mkdir storage
+cd storage
+touch storage.tf
+touch outputs.tf
+touch variables.tf
+cd
+```