fixed small typo in Q 135

Author: miguelmanalo

README.md

@@ -4403,7 +4403,7 @@ person.name;
 
 #### Answer: C
 
-With a Proxy object, we can add custom behavior to an object that we pass to it as the second argument. In this case, we pass the `handler` object which contained to properties: `set` and `get`. `set` gets invoked whenever we _set_ property values, `get` gets invoked whenever we _get_ (access) property values.
+With a Proxy object, we can add custom behavior to an object that we pass to it as the second argument. In this case, we pass the `handler` object which contained two properties: `set` and `get`. `set` gets invoked whenever we _set_ property values, `get` gets invoked whenever we _get_ (access) property values.
 
 The first argument is an empty object `{}`, which is the value of `person`. To this object, the custom behavior specified in the `handler` object gets added. If we add a property to the `person` object, `set` will get invoked. If we access a property on the `person` object, `get` gets invoked.