Update misc_docs/syntax/decorator_gentype.mdx

Co-authored-by: Patrick Ecker <[email protected]>

Author: kevanstannard

misc_docs/syntax/decorator_gentype.mdx

@@ -8,7 +8,9 @@ category: "decorators"
 
 The `@genType` decorator may be used to export ReScript values and types to JavaScript, and import JavaScript values and types into ReScript.
 
-[GenType](/docs/gentype/latest/introduction) is powerful code generation tool that can automatically generate [TypeScript](https://www.typescriptlang.org/) or [Flow](https://flow.org/) types, and also includes support for [ReasonReact](https://reasonml.github.io/reason-react/) components.
+[GenType](/docs/gentype/latest/introduction) is a code generation tool for automatically generating [TypeScript](https://www.typescriptlang.org/) / [Flow](https://flow.org/) type definitions, and JS runtime converters for non-shared ReScript values. It also features first-class support for [ReasonReact](https://reasonml.github.io/reason-react/) components.
+
+**Note:** This decorator requires the `gentype` npm package to be installed and configured correctly. Please refer to genType's [Getting Started](/docs/gentype/latest/getting-started) section for more details.
 
 ### Example