Merge pull request #23 from mvader/patch-1

Typo on README

Author: mcuadros

README.md

@@ -84,7 +84,7 @@ Date:   2015-12-11 17:57:10 +0100 +0100
 Acknowledgements
 ----------------
 
-The earlies versions of the [packfile reader](https://godoc.org/gopkg.in/src-d/go-git.v2/formats/packfile) is based on [git-chain](https://github.com/gitchain/gitchain/blob/master/git/pack.go) project done by [@yrashk](https://github.com/yrashk)
+The earlier versions of the [packfile reader](https://godoc.org/gopkg.in/src-d/go-git.v2/formats/packfile) are based on [git-chain](https://github.com/gitchain/gitchain/blob/master/git/pack.go), project done by [@yrashk](https://github.com/yrashk)
 
 
 License