fixed formatting

README.md

@@ -1,7 +1,7 @@
 # Supplemental data and code for Stern et al. 2017
 
 ## Data
-All raw data are in `data/` and contain pulse times and ipis. The files starting with `dat/Stern2014*` contain different annotations of the song recordings (Canton S, period mutants, D. simulans) first published in Stern et al. 2014 (see David Stern's [website][1] for the raw recordings):
+All raw data are in `data/` and contain pulse times and ipis. The files starting with `dat/Stern2014*` contain different annotations of the song recordings (Canton S, period mutants, D. simulans) first published in [Stern et al. 2014][7] (see David Stern's [website][1] for the raw recordings):
 - `dat/Stern2014_FSSStern2014.mat` - automatically segmented using the original version of [FlySongSegmenter][2] and taken from the [data supplement][1] to [Arthur et al.,2013][3].
 - `dat/Stern2014_FSSStern2014.mat` - automatically segmented using a modified version of the [FlySongSegmenter from the Murthy lab][4] with parameters used in [Coen et al. (2014)][5]
 - `dat/Stern2014_KyriacouManual2017.mat` - manual annotations of parts of the recordings (Canton S and perL) downloaded from the data supplement to [Kyriacou et al. (2017)][6]. `dat/Stern2014_KyriacouManual2017_pulses.mat` contains the pulse waveforms for the manually annotated pulses.
@@ -18,3 +18,5 @@ All raw data are in `data/` and contain pulse times and ipis. The files starting
 [4]: https://github.com/murthylab/songSegmenter "Murthy lab song segmenter"
 [5]: https://www.nature.com/nature/journal/v507/n7491/full/nature13131.html "Dynamic sensory cues shape song structure in _Drosophila_"
 [6]: http://www.pnas.org/content/114/8/1970.abstract "Failure to reproduce period-dependent song cycles in Drosophila is due to poor automated pulse-detection and low-intensity courtship"
+[7]: https://bmcbiol.biomedcentral.com/articles/10.1186/1741-7007-12-38 "Reported Drosophila courtship song rhythms are artifacts of data analysis"
+