Fix typo in context.md about runtime type checks

Corrected a typo in the context.md documentation regarding runtime type checks.

Author: syedahmedx3

docs/basic/getting-started/context.md

@@ -107,7 +107,7 @@ const useCurrentUser = () => {
 };
 ```
 
-Using a runtime type check in this will has the benefit of printing a clear error message in the console when a provider is not wrapping the components properly. Now it's possible to access `currentUser.username` without checking for `null`:
+Using a runtime type check in this will have the benefit of printing a clear error message in the console when a provider is not wrapping the components properly. Now it's possible to access `currentUser.username` without checking for `null`:
 
 ```tsx
 import { useContext } from "react";