Fix bad URL (#541)

coryhouse · web-flow · commit 9ec826137c02 · 2022-08-26T02:45:28.000+08:00
diff --git a/docs/advanced/patterns_by_usecase.md b/docs/advanced/patterns_by_usecase.md
@@ -426,7 +426,7 @@ function App() {
 }
 ```
 
-How to implement: Use [type guards](https://basarat.gitbooks.io/typescript/docs/types/typeGuard.html#user-defined-type-guards)!
+How to implement: Use [type guards](https://basarat.gitbook.io/typescript/type-system/typeguard#user-defined-type-guards)!
 
 ```tsx
 // Button props

Original file line number	Diff line number	Diff line change
`@@ -426,7 +426,7 @@ function App() {`
`426`	`426`	`}`
`427`	`427`	```
`428`	`428`
`429`		`-How to implement: Use [type guards](https://basarat.gitbooks.io/typescript/docs/types/typeGuard.html#user-defined-type-guards)!`
	`429`	`+How to implement: Use [type guards](https://basarat.gitbook.io/typescript/type-system/typeguard#user-defined-type-guards)!`
`430`	`430`
`431`	`431`	```tsx
`432`	`432`	`// Button props`