Minor format fixes.

Author: Olia Gavrysh

test/data/README.md

@@ -4,13 +4,17 @@ The datasets are provided under the original terms that Microsoft received such
 
 ### Wikipedia Detox
 
-This dataset is provided under [CC0](https://creativecommons.org/share-your-work/public-domain/cc0/). Redistributing the dataset "wikipedia-detox-250-line-data.tsv" with attribution:
+This dataset is provided under [CC0](https://creativecommons.org/share-your-work/public-domain/cc0/). 
 
-> Wulczyn, Ellery; Thain, Nithum; Dixon, Lucas (2016): Wikipedia Detox. figshare. https://doi.org/10.6084/m9.figshare.4054689
+Redistributing the dataset "wikipedia-detox-250-line-data.tsv" with attribution:
+
+> Wulczyn, Ellery; Thain, Nithum; Dixon, Lucas (2016): Wikipedia Detox. figshare.
 
 With modifications by taking a sample of rows and reducing rough language.
 
-Original source: https://meta.wikimedia.org/wiki/Research:Detox
+Original source: https://doi.org/10.6084/m9.figshare.4054689
+
+Original readme: https://meta.wikimedia.org/wiki/Research:Detox
 
 ### UCI Adult Dataset 
 
@@ -30,7 +34,7 @@ Redistributing the dataset "breast-cancer.txt" with attribution:
 
 ### MNIST
 
-> MNIST data originally from [NIST](https://www.nist.gov) and modified by Chris Burges, Corinna Cortes, and Yann LeCun.e http://yann.lecun.com/exdb/mnist/
+> MNIST data originally from [NIST](https://www.nist.gov) and modified by Chris Burges, Corinna Cortes, and Yann LeCun. http://yann.lecun.com/exdb/mnist/
 >
 > More information: https://en.wikipedia.org/wiki/MNIST_database