fix: Youtube embed links

Author: PHOENIX-05

docs/eps/day16.md

@@ -6,7 +6,7 @@ For the first session of this week, we are diving into the consensus mechanism o
 
 Watch the lecture on [Youtube](https://www.youtube.com/watch?v=Brv0WgFjsSs). [Slides](https://github.com/eth-protocol-fellows/protocol-studies/blob/main/docs/eps/presentations/day16_gasper.pdf).
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/_Brv0WgFjsSs" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+<iframe width="560" height="315" src="https://www.youtube.com/embed/cOivWPEBEMo" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
 
 ## Pre-reading
 

docs/eps/day17.md

@@ -6,7 +6,7 @@ The second session of this week is diving into Ethereum Virtual Machine (EVM) wi
 
 Watch the lecture recording on [Youtube](https://www.youtube.com/watch?v=gYnx_YQS8cM). [Slides](https://github.com/eth-protocol-fellows/protocol-studies/blob/main/docs/eps/presentations/day17_evm.pdf).
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/_gYnx_YQS8cM" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+<iframe width="560" height="315" src="https://www.youtube.com/embed/gYnx_YQS8cM" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
 
 ## Pre-reading