Update link for Temporal Dead Zone explanation (#47)

README.md

@@ -68,7 +68,7 @@ Another form of block-scoped declaration is the `const`, which creates constants
 
 A few things to keep in mind:
 
-* Hoisting of `let` and `const` vary from the traditional hoisting of variables and functions. Both `let` and `const` are hoisted, but cannot be accessed before their declaration, because of [Temporal Dead Zone](http://jsrocks.org/2015/01/temporal-dead-zone-tdz-demystified/)
+* Hoisting of `let` and `const` vary from the traditional hoisting of variables and functions. Both `let` and `const` are hoisted, but cannot be accessed before their declaration, because of [Temporal Dead Zone](http://jsrocks.org/2015/01/temporal-dead-zone-tdz-demystified)
 * `let` and `const` are scoped to the nearest enclosing block.
 * When using `const`, use CAPITAL_CASING (this is a common convention).
 * `const` has to be defined with its declaration.