chore: Add in the documentation for the withWrapperData

lib/config/builder/value.ts

@@ -672,6 +672,20 @@ export class Value<Type, WD> {
     )
   }
 
+  /**
+   * Use this during the times that the input needs a more specific type.
+   * Used in types that the value/ variant/ list/ config is constructed somewhere else.
+  ```ts
+  const a = Config.text({
+    name: "a",
+    required: false,
+  })
+
+  return topConfig<WrapperData>()({
+    myValue: a.withWrapperData(),
+  })
+  ```
+   */
   withWrapperData<NewWrapperData extends WD>() {
     return this as any as Value<Type, NewWrapperData>
   }