Use TrailName consistently

Use `TrailName` instead of just `Name`

Author: laurelmay

doc_source/aws-resource-cloudtrail-trail.md

@@ -133,13 +133,13 @@ An arbitrary set of tags \(key–value pairs\) for this trail\.
 *Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)
 
 `TrailName`  <a name="cfn-cloudtrail-trail-trailname"></a>
-Specifies the name of the trail or trail ARN\. If `Name` is a trail name, the string must meet the following requirements:  
+Specifies the name of the trail or trail ARN\. If `TrailName` is a trail name, the string must meet the following requirements:  
 + Contain only ASCII letters \(a\-z, A\-Z\), numbers \(0\-9\), periods \(\.\), underscores \(\_\), or dashes \(\-\)
 + Start with a letter or number, and end with a letter or number
 + Be between 3 and 128 characters
 + Have no adjacent periods, underscores or dashes\. Names like `my-_namespace` and `my--namespace` are invalid\.
 + Not be in IP address format \(for example, 192\.168\.5\.4\)
-If `Name` is a trail ARN, it must be in the format:  
+If `TrailName` is a trail ARN, it must be in the format:  
  `arn:aws:cloudtrail:us-east-2:123456789012:trail/MyTrail`   
 *Required*: No  
 *Type*: String  
@@ -393,4 +393,4 @@ The following example creates a trail that logs events in all regions, an Amazon
             - TopicName
         IsLogging: true
         IsMultiRegionTrail: true
-```
+```