Update typescript -> TypeScript

Author: lychyi

docs/why-typescript.md

@@ -114,7 +114,7 @@ $(123).show(); // Error: selector needs to be a string
 We will discuss the details of creating TypeScript definitions for existing JavaScript in detail later once you know more about TypeScript (e.g. stuff like `interface` and the `any`).
 
 ## Future JavaScript => Now
-TypeScript provides a number of features that are planned in ES6 for current JavaScript engines (that only support ES5 etc). The typescript team is actively adding these features and this list is only going to get bigger over time and we will cover this in its own section. But just as a specimen here is an example of a class:
+TypeScript provides a number of features that are planned in ES6 for current JavaScript engines (that only support ES5 etc). The TypeScript team is actively adding these features and this list is only going to get bigger over time and we will cover this in its own section. But just as a specimen here is an example of a class:
 
 ```ts
 class Point {