fix typos in links under model sources

README.md

@@ -37,10 +37,10 @@ Extensive evaluations show the superiority of the proposed SpeechT5 framework on
 
 <!-- Provide the basic links for the model. -->
 
-- **Repository:** [https://github.com/microsoft/SpeechT5/]
-- **Paper:** [https://arxiv.org/pdf/2110.07205.pdf]
-- **Blog Post:** [https://huggingface.co/blog/speecht5]
-- **Demo:** [https://huggingface.co/spaces/Matthijs/speecht5-tts-demo]
+- **Repository:** <https://github.com/microsoft/SpeechT5/>
+- **Paper:** <https://arxiv.org/pdf/2110.07205.pdf>
+- **Blog Post:** <https://huggingface.co/blog/speecht5>
+- **Demo:** <https://huggingface.co/spaces/Matthijs/speecht5-tts-demo>
 
 
 # Uses