Fixes links.

README.md

 # [Moodle Logstore xAPI](https://github.com/jlowe64/moodle-logstore-xapi)
 > Emits events from the [Moodle](https://moodle.org/) Logstore as [xAPI](https://github.com/adlnet/xAPI-Spec/blob/master/xAPI.md) statements.
 
-[![Build Status](https://travis-ci.org/jlowe64/moodle-logstore_xapi.svg?branch=master)](https://travis-ci.org/jlowe64/moodle-logstore-xapi)
+[![Build Status](https://travis-ci.org/jlowe64/moodle-logstore_xapi.svg?branch=master)](https://travis-ci.org/jlowe64/moodle-logstore_xapi)
 [![Gitter](https://badges.gitter.im/Join Chat.svg)](https://gitter.im/LearningLocker/learninglocker?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
-- [Installation](https://github.com/jlowe64/moodle-logstore-xapi/blob/master/docs/installation.md)
-- [Read documentation](https://github.com/jlowe64/moodle-logstore-xapi/blob/master/docs/readme.md).
-- [Report bugs, enhancements, and questions](https://github.com/jlowe64/moodle-logstore-xapi/blob/master/contributing.md#issue-templates).
+- [Installation](docs/installation.md)
+- [Read documentation](docs/readme.md).
+- [Report bugs, enhancements, and questions](contributing.md#issue-templates).