Added Consensus Day videos

README.md

@@ -51,6 +51,7 @@ To gain familiarity with this subject matter, we refer the reader to:
     - [Mining](https://github.com/filecoin-project/specs/blob/master/mining.md) -- the routine that invokes expected consensus.
 - [Filecoin Whitepaper](https://filecoin.io/filecoin.pdf) -- We urge readers to pay special attention to Section 6: `Useful Work Consensus`.
 - [Power Fault Tolerance Technical Report](https://filecoin.io/power-fault-tolerance.pdf) (PFT) -- Outlining some of the motivations and implications of this work, reframing Byzantine Fault Tolerance as a function of power committed to the network (in our case storage) rather than number of nodes.
+- Expected Consensus Overview -- This is a quick talk going over the basics of EC from ConsensusDay held in February 2019 at Stanford. [Talk](https://www.youtube.com/watch?v=pUIVMG4ZS2E&list=PLhuBigpl7lqtG6LgQ0FiiR4Pbrph9nocn&index=4&t=1s)/[Slides](https://drive.google.com/open?id=1eXLTSPmXTdtNoPk58VVgcwxdlrn8dUVr).
 
 #### Current avenues of research
 
@@ -63,7 +64,7 @@ By design, these are meant to be extremely large, open-ended endeavours each of
 | **Formal Treatment of Expected Consensus** | Formal analysis of Expected Consensus' security guarantees | Working On/Collaboration | -[issue](https://github.com/filecoin-project/consensus/issues/19) |
 | **EC incentive compatibility** | This broadly refers to EC incentive compatibility and initial parameter setting for the Filecoin blockchain ensuring EC incentive compatibility using simulations or probabilistic proofs. | Working On/Collaboratoin | - Chain convergence <br>- [Weighting](https://github.com/filecoin-project/consensus/issues/27)<br/>- [LBP](https://github.com/filecoin-project/consensus/issues/11)<br>- [Slashing](https://github.com/filecoin-project/consensus/issues/32)<br>- [VDF use](https://github.com/filecoin-project/consensus/issues/25)<br>- [Block time ](https://github.com/filecoin-project/consensus/issues/28)<br>- [Finality](https://github.com/filecoin-project/consensus/issues/29) |
 | **Simulate EC Attacks** | Bottoms-up analysis of EC security simulating likely attacks under various proportions of honest/rational/adversarial miners to iterate on protocol design | Working On | -[issue](https://github.com/filecoin-project/consensus/issues/26) |
-| **Secret Single Leader Election** | Working out a full construction for SSLE. In spirit similar to cryptographic sortition but guaranteeing a single leader at every round | Collaboration/RFP | - [issue](https://github.com/filecoin-project/research-private/issues/8) <br>- [SSLE RFP](https://github.com/protocol/research-RFPs/blob/master/RFPs/rfp-6-SSLE.md) |
+| **Secret Single Leader Election** | Working out a full construction for SSLE. In spirit similar to cryptographic sortition but guaranteeing a single leader at every round | Collaboration/RFP | - [issue](https://github.com/filecoin-project/research-private/issues/8) <br>- [SSLE RFP](https://github.com/protocol/research-RFPs/blob/master/RFPs/rfp-6-SSLE.md) <br>- [SSLE Overview](https://www.youtube.com/watch?v=_ha6abiM0Uw&list=PLhuBigpl7lqtG6LgQ0FiiR4Pbrph9nocn&index=5&t=0s) from ConsensusDay 2019 |
 | **Formalizing Power Fault Tolerance (PFT)** | BFT is abstracted in terms of influence over the protocol rather than machines | Working On/Collaboration | - [issue](https://github.com/filecoin-project/consensus/issues/38) |
 | **Random beacons and the Filecoin blockchain** | Looking at and beyond the chain for trusted randomness in Filecoin | In Progress (70%) | -[issue](https://github.com/filecoin-project/consensus/issues/24)|