Add cyber to external papers
@ -2,6 +2,7 @@
## External Papers
* [Cyber: Computing the knowledge of the Great Web](https://ipfs.io/ipfs/QmceNpj6HfS81PcCaQXrFMQf7LR5FTLkdG9sbSRNy3UXoZ)
* [Ethereum: a secure decentralized generalized transaction ledger](https://ethereum.github.io/yellowpaper/paper.pdf)
## Hosted Papers