Merge pull request #158 from sachingoel/patch-2

Fix hyperlink in readme

Author: wsargent

README.md

@@ -354,7 +354,7 @@ Here are some common text editors and their syntax highlighting modules you coul
 * [Michael Crosby](http://crosbymichael.com/) has some more [Dockerfiles best practices](http://crosbymichael.com/dockerfile-best-practices.html) / [take 2](http://crosbymichael.com/dockerfile-best-practices-take-2.html).
 * [Building Good Docker Images](http://jonathan.bergknoff.com/journal/building-good-docker-images) / [Building Better Docker Images](http://jonathan.bergknoff.com/journal/building-better-docker-images)
 * [Managing Container Configuration with Metadata](https://speakerdeck.com/garethr/managing-container-configuration-with-metadata)
-* [How to write excellent Dockerfiles] (https://rock-it.pl/how-to-write-excellent-dockerfiles/)
+* [How to write excellent Dockerfiles](https://rock-it.pl/how-to-write-excellent-dockerfiles/)
 
 ## Layers