fix: improve variable description

Co-authored-by: Joe Niland <[email protected]>

variables.tf

@@ -257,7 +257,7 @@ variable "logs_config" {
 variable "default_permissions_enabled" {
   type        = bool
   default     = true
-  description = "When 'true' default base iam permissions to get up and running with codebuild are attached. Those who want a least priveleged policy can instead set to `false` and use the `custom policy` variable."
+  description = "When 'true' default base IAM permissions to get up and running with CodeBuild are attached. Those who want a least privileged policy can instead set to `false` and use the `custom_policy` variable."
 }
 
 variable "extra_permissions" {