Made changes to rationale

README.md

@@ -174,12 +174,13 @@ Processing steps included:
 
 ### Curation Rationale
 
-This dataset was curated for training a model to classify different species of Heliconius Butterflies and to take into account mimicry between species aand accuity of the observer. 
+This dataset was curated for training a model to classify different species of Heliconius Butterflies and to take into account mimicry between species and acuity of the observer (bird, butterfly, or human/other).
 The original data (Cuthill et al 2019) had misclassified species/subspecies and some locality/ collection sites were outside the known range of the butterflies. 
 It also contained hybrid and aberrant samples, that had the potential to muddle classification results. 
 To prevent this, the data was further refined by several Heliconius experts to remove hybrid and aberrant samples. 
 Lastly, bird and butterfly acuities were added to provide another level of analysis.
 
+
 ### Source Data
 
 Cuthill, et. al. [doi:10.5061/dryad.2hp1978](https://doi.org/10.5061/dryad.2hp1978).