Add talks from SFHTML5

[zenorocha]

https://www.youtube.com/playlist?list=PLOU2XLYxmsILhqgUXAGpusgBMje8Qd6r-

[zenorocha]

• Missing slides from "The Web Components Revolution is Here" by @ebidel
• Missing slides from "The Next Generation of Web Development" by @mattsmcnulty