add deprecation doc

alfa-client/libs/command-shared/src/lib/command.service.ts

@@ -58,6 +58,9 @@ export class CommandService {
     private store: Store,
   ) {}
 
+  /**
+   * @deprecated Use createCommandByProps(createCommandProps: CreateCommandProps) instead.
+   */
   public createCommand(
     resource: Resource,
     linkRel: string,