MON-259: README should have a valide tf fmt example

scripts/01_update_output.sh

@@ -14,7 +14,7 @@ for path in $(find $TO_PARSE -path ./incubator -prune -o -name 'monitors-*.tf' -
     > outputs.tf
     for monitor in $(grep 'resource "datadog_monitor"' $(basename $path) | awk '{print $3}' | tr -d '"' ); do
         echo $monitor
-        cat <<EOF >> outputs.tf
+        cat >> outputs.tf <<EOF
 output "${monitor}_id" {
   description = "id for monitor $monitor"
   value       = "\${datadog_monitor.${monitor}.id}"

scripts/02_update_readme.sh

@@ -46,7 +46,7 @@ module "datadog-monitors-${module_dash}" {
   source = "git::ssh://git@bitbucket.org/morea/terraform.feature.datadog.git//${module_slash}?ref={revision}"
 
   environment = "\${var.environment}"
-  message = "\${module.datadog-message-alerting.alerting-message}"
+  message     = "\${module.datadog-message-alerting.alerting-message}"
 }
 
 \`\`\`