updated video

Author: ardan-bkennedy

README.md

@@ -45,6 +45,7 @@ _**Articles**_
 [IT World Canada](http://www.itworldcanada.com/article/nascent-google-development-language-shows-promise-for-more-productive-coding/387449)
 
 _**Video**_  
+[GopherChina (2018) - Composition In Go William](https://www.youtube.com/watch?v=pvLUO9ZManM&feature=youtu.be)  
 [GopherCon Singapore (2018) - Optimizing For Correctness](https://engineers.sg/video/optimize-for-correctness-gopherconsg-2018--2610)  
 [GopherCon India (2018) - What is the Legacy You Are Leaving Behind](https://www.youtube.com/watch?v=j3zCUc06OXo&t=0s&index=11&list=PLhJxE57Cki63cElK2kmt3_vi8j2eIHTqZ)  
 [Code::Dive (2017) - Optimizing For Correctness](https://www.youtube.com/watch?v=OTLjN8NQDyo)