docs: update deprecated link (#2219)

Signed-off-by: Eng Zer Jun <[email protected]>

Author: Juneezee

README.md

@@ -623,7 +623,7 @@ z.coerce.boolean().parse(null); // => false
 
 ## Literals
 
-Literal schemas represent a [literal type](https://www.typescriptlang.org/docs/handbook/literal-types.html), like `"hello world"` or `5`.
+Literal schemas represent a [literal type](https://www.typescriptlang.org/docs/handbook/2/everyday-types.html#literal-types), like `"hello world"` or `5`.
 
 ```ts
 const tuna = z.literal("tuna");