Update README.md

README.md

@@ -18,7 +18,7 @@ The files of this dataset have following structure:
 ~~~
 data
 ├── 1_raw
-│   └── **two_sample_problem_dataset.tsv.gz**
+│   └── two_sample_problem_dataset.tsv.gz
 ├── 2_samples
 │   ├── sample_train.tsv.gz
 │   └── sample_simulation.tsv.gz