Update JSON link
@@ -221,7 +221,7 @@ Ontologies are shared in different formats. The default format used by ROBOT is
robot convert --input annotated.owl --output results/annotated.obo
The file format is determined by the extension of the output file (e.g. `.obo`), but it can also be declared with the `--format` option. Valid file formats are:
- - json - [JSON](http://www.json.org/)
+ - json - [OBO Graphs JSON](https://github.com/geneontology/obographs/)
- obo - [OBO Format](http://purl.obolibrary.org/obo/oboformat)
- ofn - [OWL Functional](http://www.w3.org/TR/owl2-syntax/)
- omn - [Manchester](https://www.w3.org/TR/owl2-manchester-syntax/)
