chore: update copy

Author: cjbell

data/specs/mapi/customizations.yml

@@ -2,7 +2,7 @@ resources:
   workflows:
     name: Workflows
     description: |-
-      To define a logical flow of your notifications, you create a workflow consisting of workflow steps. Workflow steps can be functions or channels, and can have conditional logic that determines whether to execute that step when the workflow is triggered.
+      To define a logical flow for your notifications, you create a workflow consisting of steps. Workflow steps can be functions or channels, and can have conditional logic that determines whether to execute that step when the workflow is triggered.
 
       You can retrieve, update, or create a workflow as well as list all workflows in a given environment. Workflows are identified by their unique workflow key.
     subresources:
@@ -51,7 +51,7 @@ resources:
   message_types:
     name: Message Types
     description: |-
-      Message types are used to categorize messages.
+      A message type is a schema for a message that maps to a UI component or element within your application.
   variables:
     name: Variables
     description: |-