Update README.md

README.md

@@ -43,14 +43,14 @@ Rocket Science is a benchmark that tests for understanding of spatial relations
 - **Language(s) (NLP):** English
 - **License:** CC-BY-4.0
 
-# Dataset Sources [optional]
+# Dataset Sources
 
 <!-- Provide the basic links for the dataset. -->
 
 - **Repository:** https://github.com/nilshoehing/rocketscience
-- **Paper [optional]:** coming soon
+- **Paper:** coming soon
 
-# Citation [optional]
+# Citation
 
 <!-- If there is a paper or blog post introducing the dataset, the APA and Bibtex information for that should go in this section. -->