fixing link syntax (docker#407)

* fixing link syntax

* fixing missing bracket

Author: Mano Marks

README.md

@@ -1,6 +1,6 @@
 # Docker Tutorials and Labs
 
-> At this time we are not actively adding labs to this repository. Our focus is on (training.play-with-docker.com)[https://training.play-with-docker.com] where new lab and workshop oriented content is being added. We welcome fixes to existing content. For any new content you wish to contribute, please use this repository:(https://github.com/play-with-docker/play-with-docker.github.io)[https://github.com/play-with-docker/play-with-docker.github.io].
+> At this time we are not actively adding labs to this repository. Our focus is on [training.play-with-docker.com](https://training.play-with-docker.com) where new lab and workshop oriented content is being added. We welcome fixes to existing content. For any new content you wish to contribute, please use this repository:[https://github.com/play-with-docker/play-with-docker.github.io](https://github.com/play-with-docker/play-with-docker.github.io).
 
 
 This repo contains [Docker](https://docker.com) labs and tutorials authored both by Docker, and by members of the community. We welcome contributions and want to grow the repo.

contribute.md

@@ -4,7 +4,7 @@ Thank you so much for your interest in contributing to [Docker](https://docker.c
 
 Just a few quick things to be aware of before you get started.
 
-We welcome issues and pull requests for fixing a problem with an existing tutorial. We are not accepting new tutorials. If you want to contribute new tutorials, please consider contributing to (training.play-with-docker.com)(https://training.play-with-docker.com) in this repository: (https://github.com/play-with-docker/play-with-docker.github.io)9https://github.com/play-with-docker/play-with-docker.github.io
+We welcome issues and pull requests for fixing a problem with an existing tutorial. We are not accepting new tutorials. If you want to contribute new tutorials, please consider contributing to [training.play-with-docker.com](https://training.play-with-docker.com) in this repository: [https://github.com/play-with-docker/play-with-docker.github.io](https://github.com/play-with-docker/play-with-docker.github.io).
 
 Anything you contribute will be under an Apache license. Docker will choose which tutorials to accept and reject, and will be able to take any tutorials here and put them in Docker documentation. Likewise, anything posted here may be forked by anyone on GitHub.