Update classes-emit.md

Author: basarat

docs/classes-emit.md

@@ -60,9 +60,9 @@ People rarely have trouble understanding 1, but many people struggle with 2. So
 
 After having tutored many people about this I find the following explanation to be simplest. First we will explain how the code from `__extends` is equivalent to the simple `d.prototype.__proto__ = b.prototype`, and then why this line in itself is significant. To understand all this you need to know these things:
 1. `__proto__`
-2. `prototype`
-3. effect of `new` on `this` inside the called function
-4. effect of `new` on `prototype` and `__proto__`
+1. `prototype`
+1. effect of `new` on `this` inside the called function
+1. effect of `new` on `prototype` and `__proto__`
 
 All objects in JavaScript contain a `__proto__` member. This member is often not accessible in older browsers (sometimes documentation refers to this magical property as `[[prototype]]`). It has one objective: If a property is not found on an object during lookup (e.g. `obj.property`) then it is looked up at `obj.__proto__.property`. If it is still not found then `obj.__proto__.__proto__.property` till either: *it is found* or *the latest `.__proto__` itself is null*. This explains why JavaScript is said to support *prototypal inheritance* out of the box. This is shown in the following example, which you can run in the chrome console or nodejs: