Updates readme

specification/billing/resource-manager/readme.md

@@ -4,31 +4,41 @@
 
 This is the AutoRest configuration file for Billing.
 
-
-
 ---
+
 ## Getting Started
+
 To build the SDK for Billing, simply [Install AutoRest](https://aka.ms/autorest/install) and in this folder, run:
 
 > `autorest`
 
 To see additional help and options, run:
 
 > `autorest --help`
+
 ---
 
 ## Configuration
 
-
-
 ### Basic Information
+
 These are the global settings for the Billing API.
 
 ``` yaml
 openapi-type: arm
-tag: package-2020-05
+tag: package-2023-04
 ```
 
+
+### Tag: package-2023-04
+
+These settings apply only when `--tag=package-2023-04` is specified on the command line.
+
+```yaml $(tag) == 'package-2023-04'
+input-file:
+  - Microsoft.Billing/stable/2023-04-01/billing.json
+  - Microsoft.Billing/stable/2023-04-01/billingOperations.json
+```
 ### Tag: package-2021-10
 
 These settings apply only when `--tag=package-2021-10` is specified on the command line.
@@ -127,8 +137,8 @@ input-file:
 ```
 
 ---
-# Code Generation
 
+# Code Generation
 
 ## Swagger to SDK
 
@@ -151,7 +161,6 @@ swagger-to-sdk:
   - repo: azure-powershell
 ```
 
-
 ## C#
 
 These settings apply only when `--csharp` is specified on the command line.
@@ -291,7 +300,3 @@ java:
 regenerate-manager: true
 generate-interface: true
 ```
-
-
-
-