docs(persist): fix signature to require persistOptions (#3477)

Author: pavan-sh

docs/reference/middlewares/persist.md

@@ -31,7 +31,7 @@ const nextStateCreatorFn = persist(stateCreatorFn, persistOptions)
 ### Signature
 
 ```ts
-persist<T, U>(stateCreatorFn: StateCreator<T, [], []>, persistOptions?: PersistOptions<T, U>): StateCreator<T, [['zustand/persist', U]], []>
+persist<T, U>(stateCreatorFn: StateCreator<T, [], []>, persistOptions: PersistOptions<T, U>): StateCreator<T, [['zustand/persist', U]], []>
 ```
 
 ### Mutator
@@ -42,7 +42,7 @@ persist<T, U>(stateCreatorFn: StateCreator<T, [], []>, persistOptions?: PersistO
 
 ## Reference
 
-### `persist(stateCreatorFn)`
+### `persist(stateCreatorFn, persistOptions)`
 
 #### Parameters