clean up README file

Author: maxulysse

README.md

@@ -1,6 +1,8 @@
 # Presentations
 
-[![License][license-badge]][license-link] [![Nextflow version][nextflow-badge]][nextflow-link] [![Travis status][travis-badge]][travis-link] [![works on my machine][works-badge]][works-link]
+[![Version][version-badge]][version-link]
+[![License][license-badge]][license-link]
+[![Travis status][travis-badge]][travis-link]
 
 My own presentations made with [compile-latex](https://github.com/MaxUlysse/compile-latex).
 
@@ -14,5 +16,5 @@ example:
 [nextflow-link]: https://www.nextflow.io/
 [travis-badge]: https://api.travis-ci.org/MaxUlysse/Presentations.svg
 [travis-link]: https://travis-ci.org/MaxUlysse/Presentations
-[works-badge]: https://img.shields.io/badge/works-on_my_machine-brightgreen.svg
-[works-link]: https://github.com/nikku/works-on-my-machine
+[version-badge]: https://img.shields.io/github/release/MaxUlysse/Presentations.svg
+[version-link]: https://github.com/MaxUlysse/Presentations/releases/latest