Merge pull request #1 from sinchang/sinchang-patch-1

Fix a small typo

content/_index.md

@@ -38,4 +38,4 @@ This book won't go into these library at length. (Again, you should learn the AP
 
 The most important part of this book is the `Real world examples`. You can learn how to apply these techniques in a real word application, how they will help you write your application more quickly. The sections before `Real world examples` is only for highlighting some usage of these libraries that you should know before diving into the real world examples.
 
-Finnaly, English is not my first language. If you find anywhere I didn't express clearly, please mention me at Twitter ([@randyloop](https://twitter.com/randyloop)). 
+Finally, English is not my first language. If you find anywhere I didn't express clearly, please mention me at Twitter ([@randyloop](https://twitter.com/randyloop)).