Fix output naming convention

Author: dgniewek

example/full-example/outputs.tf

@@ -1,4 +1,4 @@
-output "example-output" {
+output "example_output" {
   description = "Example output of the module"
   value       = module.terraform-module-template
 }

outputs.tf

@@ -1,6 +1,6 @@
 # Example output from the module
 
-output "exmaple-output" {
+output "example_output" {
   description = "Example output of the module"
   value       = var.example_var
 }