Fix inline code not showing (#373)

Author: renancouto

docs/advanced/patterns_by_usecase.md

@@ -459,7 +459,7 @@ Parent.propTypes = {
 
 The thing you cannot do is **specify which components** the children are, e.g. If you want to express the fact that "React Router `<Routes>` can only have `<Route>` as children, nothing else is allowed" in TypeScript.
 
-This is because when you write a JSX expression (const foo = <MyComponent foo='foo' />), the resultant type is blackboxed into a generic JSX.Element type. (_[thanks @ferdaber](https://github.com/typescript-cheatsheets/react/issues/271)_)
+This is because when you write a JSX expression (`const foo = <MyComponent foo='foo' />`), the resultant type is blackboxed into a generic JSX.Element type. (_[thanks @ferdaber](https://github.com/typescript-cheatsheets/react/issues/271)_)
 
 ## Type Narrowing based on Props