Add link to original L3 paper and fix link underscores in README

README.md

@@ -72,10 +72,10 @@ To help you get started with OpenL3 please see the
 
 Please cite the following papers when using OpenL3 in your work:
 
-[1] [Look, Listen and Learn More: Design Choices for Deep Audio Embeddings](http://www.justinsalamon.com/uploads/4/3/9/4/4394963/cramer_looklistenlearnmore_icassp_2019.pdf)<br/>
+[1] [Look, Listen and Learn More: Design Choices for Deep Audio Embeddings](http://www.justinsalamon.com/uploads/4/3/9/4/4394963/cramer\_looklistenlearnmore\_icassp\_2019.pdf)<br/>
 Jason Cramer, Ho-Hsiang Wu, Justin Salamon, and Juan Pablo Bello.<br/>
 IEEE Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP), pages 3852–3856, Brighton, UK, May 2019.
 
-[2] Look, Listen and Learn<br/>
+[2] [Look, Listen and Learn](http://openaccess.thecvf.com/content\_ICCV\_2017/papers/Arandjelovic\_Look\_Listen\_and\_ICCV\_2017\_paper.pdf)<br/>
 Relja Arandjelović and Andrew Zisserman<br/>
 IEEE International Conference on Computer Vision (ICCV), Venice, Italy, Oct. 2017.