update service linker readme for sdk generation (Azure#18684)

Author: ChenTanyi

specification/servicelinker/resource-manager/readme.md

@@ -1,8 +1,8 @@
-# servicelinker
+# ServiceLinker
 
 > see https://aka.ms/autorest
 
-This is the AutoRest configuration file for servicelinker.
+This is the AutoRest configuration file for ServiceLinker.
 
 ## Getting Started
 
@@ -22,9 +22,10 @@ For other options on installation see [Installing AutoRest](https://aka.ms/autor
 
 ### Basic Information
 
-These are the global settings for the servicelinker.
+These are the global settings for the ServiceLinker.
 
 ```yaml
+title: ServiceLinkerManagementClient
 openapi-type: arm
 openapi-subtype : rpaas
 tag: package-2022-05-01