fix markdown

a/README.md

@@ -69,13 +69,14 @@ data "aws_vpc_dhcp_options" "options" {
     values = [local.vpc_id]
   }
 }
+```
 
 ```hcl
-module "dms\_replication\_dns"  {
+module "dms_replication_dns"  {
   source = "git@github.e.it.census.gov:terraform-modules/aws-dns//host"
 
-  name    = format("%v.%v", aws\_dms\_replication\_instance.dev.replication\_instance\_id, data.aws\_vpc\_dhc\_options.options.domain\_name)
-  values  = aws\_dms\_replication\_instance.dev.replication\_instance\_private\_ips
+  name    = format("%v.%v", aws_dms_replication_instance.dev.replication_instance_id, data.aws_vpc_dhc_options.options.domain_name)
+  values  = aws_dms_replication_instance.dev.replication_instance_private_ips
 }
 ```
 
@@ -84,30 +85,31 @@ This requires the role `r-inf-terraform-route53` be created from the Terraform m
 (generally in `common/apps/route53`.  It then uses an STS AssumeRole from Terraform.  You must have the approriate permissions
 on the source account to assume this role.
 
-file: provider.route53.east_ma13_gov.tf
+file: provider.route53.east\_ma13\_gov.tf
 ```hcl
 provider "aws" {
-  alias  = "east\_ma13\_gov"
-  region = var.region\_map["east"]
-  assume\_role {
-    role\_arn     = format("arn:%v:iam::%v:role/r-inf-terraform-route53", data.aws\_arn.current.partition, "187944776148")
-    session\_name = var.os\_username
+  alias  = "east_ma13_gov"
+  region = var.region_map["east"]
+  assume_role {
+    role_arn     = format("arn:%v:iam::%v:role/r-inf-terraform-route53", data.aws_arn.current.partition, "187944776148")
+    session_name = var.os_username
   }
 }
 ```
 
 file: dns.tf
 ```hcl
-module "db\_cname" {
+module "db_cname" {
   providers = {
-    aws = aws.east\_ma13\_gov
+    aws = aws.east_ma13_gov
   }
   source = "git@github.e.it.census.gov:terraform-modules/aws-dns//cname"
 
-  zone   = var.vpc\_domain\_name
-  name   = local.app\_db\_dns\_name
-  values = [module.db.db\_instance\_address]
+  zone   = var.vpc_domain_name
+  name   = local.app_db_dns_name
+  values = [module.db.db_instance_address]
 }
+```
 
 ## Requirements
 

a/main.tf

@@ -70,6 +70,7 @@
 *     values = [local.vpc_id]
 *   }
 * }
+* ```
 * 
 * ```hcl
 * module "dms_replication_dns"  {