Update README.md

README.md

@@ -9,11 +9,11 @@ Model in paper Cobra: Extending Mamba to Multi-Modal Large Language Model for Ef
 
 This is a multi-modal large language model that takes one image and text prompt as inputs and outputs text answers.
 
-### Model Sources [optional]
+### Model Sources
 
 <!-- Provide the basic links for the model. -->
 
 - **Repository:** https://github.com/h-zhao1997/cobra
-- **Paper [optional]:** https://arxiv.org/abs/2403.14520
-- **Demo [optional]:** https://huggingface.co/spaces/han1997/cobra
+- **Paper:** https://arxiv.org/abs/2403.14520
+- **Demo:** https://huggingface.co/spaces/han1997/cobra