Clarify some things in Objects intro

1-js/04-object-basics/01-object/article.md

@@ -7,7 +7,7 @@ In contrast, objects are used to store keyed collections of various data and mor
 
 An object can be created with figure brackets `{…}` with an optional list of *properties*. A property is a "key: value" pair, where `key` is a string (also called a "property name"), and `value` can be anything.
 
-We can imagine an object as a cabinet with signed files. Every piece of data is stored in its file by the key. It's easy to find a file by its name or add/remove a file.
+We can imagine an object as a cabinet with labeled folders. Every piece of data is stored in its folder by the key. It's easy to find a folder by its name or add/remove a folder.
 
 ![](object.svg)
 
@@ -40,11 +40,11 @@ In the `user` object, there are two properties:
 1. The first property has the name `"name"` and the value `"John"`.
 2. The second one has the name `"age"` and the value `30`.
 
-The resulting `user` object can be imagined as a cabinet with two signed files labeled "name" and "age".
+The resulting `user` object can be imagined as a cabinet with two folders labeled "name" and "age".
 
 ![user object](object-user.svg)
 
-We can add, remove and read files from it at any time.
+We can add, remove and read folders from it at any time.
 
 Property values are accessible using the dot notation:
 
@@ -101,7 +101,7 @@ For multiword properties, the dot access doesn't work:
 user.likes birds = true
 ```
 
-JavaScript doesn't understand that. It thinks that we address `user.likes`, and then gives a syntax error when comes across unexpected `birds`.
+JavaScript doesn't understand that. It thinks that we're referring to `user.likes`, and then gives a syntax error when it comes across the unexpected `birds`.
 
 The dot requires the key to be a valid variable identifier. That implies: contains no spaces, doesn't start with a digit and doesn't include special characters (`$` and `_` are allowed).
 
@@ -161,7 +161,7 @@ alert( user.key ) // undefined
 
 ### Computed properties
 
-We can use square brackets in an object literal, when creating an object. That's called *computed properties*.
+If you want to be flexible about naming your properties, you can use something called *computed properties*.
 
 For instance: