update FIDDLE links

Author: alistairewj

README.md

@@ -21,7 +21,7 @@ To start this deployment, click the Launch Stack button.  On the first screen, t
 * [Bloatectomy](https://github.com/MIT-LCP/bloatectomy) ([paper](https://github.com/MIT-LCP/bloatectomy/blob/master/paper/paper.md)) - A python based package for removing duplicate text in clinical notes
 * [Medication categories](https://github.com/mghassem/medicationCategories) - Python script for extracting medications from free-text notes
 * [MIMIC Extract](https://github.com/MLforHealth/MIMIC_Extract) ([paper](https://doi.org/10.1145/3368555.3384469)) - A python based package for transforming MIMIC-III data into a machine learning friendly format
-* [FIDDLE](https://gitlab.eecs.umich.edu/mld3/FIDDLE) ([paper (PDF)](https://www.mlforhc.org/s/Sjoding-jete.pdf)) - A python based package for a FlexIble Data-Driven pipeLinE (FIDDLE), transforming structured EHR data into a machine learning friendly format
+* [FIDDLE](https://github.com/MLD3/FIDDLE) ([paper](https://doi.org/10.1093/jamia/ocaa139)) - A python based package for a FlexIble Data-Driven pipeLinE (FIDDLE), transforming structured EHR data into a machine learning friendly format
 
 ## Acknowledgement