diff --git a/tf-modulised/vpc-subnets/README.md b/tf-modulised/vpc-subnets/README.md
index 6ba6c9a..250910e 100644
--- a/tf-modulised/vpc-subnets/README.md
+++ b/tf-modulised/vpc-subnets/README.md
@@ -1,4 +1,5 @@
 # terraform.tfvars example
+```
 aws_access_key = "..."
 aws_secret_key = "..."
 aws_region = "ap-east-1"
@@ -9,3 +10,4 @@ default-tags = {
     "project" = "project1"
     "application" = "network"
 }
+```