fix typo

readme.md

@@ -2,9 +2,9 @@ A proxy for [miRNA](https://en.wikipedia.org/wiki/MicroRNA)/[isomiR](https://en.
 
 [![Project Status: Active – The project has reached a stable, usable state and is being actively developed.](http://www.repostatus.org/badges/latest/active.svg)](http://www.repostatus.org/#active)
 [![Description](https://img.shields.io/badge/gff3-definition-yellow.svg)](https://github.com/miRTop/mirGFF3/blob/master/definition.md)
-[![Example](https://img.shields.io/badge/gff3-example-green.svg)](https://github.com/miRTop/mirGFF3/blob/master/example.gff)
-[![Example](https://img.shields.io/badge/FAIRsharing-accepted-blue.svg)](https://fairsharing.org/bsg-s001218)
-[![Example](https://img.shields.io/badge/EDMA-accepted-blue.svg)](http://bioportal.bioontology.org/ontologies/EDAM?p=classes&conceptid=format_3864)
+[![example](https://img.shields.io/badge/gff3-example-green.svg)](https://github.com/miRTop/mirGFF3/blob/master/example.gff)
+[![FAIR](https://img.shields.io/badge/FAIRsharing-accepted-blue.svg)](https://fairsharing.org/bsg-s001218)
+[![EDAM](https://img.shields.io/badge/EDAM-accepted-blue.svg)](http://bioportal.bioontology.org/ontologies/EDAM?p=classes&conceptid=format_3864)