Update README to cosmoshub-4 (#827)

README.md

@@ -19,8 +19,9 @@ We have active, helpful communities on Twitter, Discord, and Telegram.
 * [Twitter](https://twitter.com/cosmos)
 * [Telegram](https://t.me/cosmosproject)
 
-## Archives && Genesis
+## Archives & Genesis
 
-With each version of the Cosmos Hub, the chain is restarted from a new Genesis state. This version will be used to upgrade `cosmoshub-3` to `cosmoshub-4`. Mainnet is currently running as `cosmoshub-3`. Archives of the state of `cosmoshub-1` and `cosmoshub-2` are available [here](./docs/resources/archives.md).
+With each version of the Cosmos Hub, the chain is restarted from a new Genesis state. 
+Mainnet is currently running as `cosmoshub-4`. Archives of the state of `cosmoshub-1`, `cosmoshub-2`, and `cosmoshub-3` are available [here](./docs/resources/archives.md).
 
 If you are looking for historical genesis files and other data [`cosmos/mainnet`](http://github.com/cosmos/mainnet) is an excellent resource.

docs/resources/archives.md

@@ -16,10 +16,12 @@ If you would like to search explorers for previous hub data, these are some link
 
 - [Cosmos Hub 1](https://cosmoshub-1.bigdipper.live/)
 - [Cosmos Hub 2](https://cosmoshub-2.bigdipper.live/)
+- [Cosmos Hub 3](https://cosmoshub-3.bigdipper.live/)
 
 ### Hubble
 
 - [Cosmos Hub 1](https://hubble.figment.network/cosmos/chains/cosmoshub-1)
 - [Cosmos Hub 2](https://hubble.figment.network/cosmos/chains/cosmoshub-2)
+- [Cosmos Hub 3](https://hubble.figment.network/cosmos/chains/cosmoshub-3)
 
 If you want to makes archives available to the community, feel free to open a PR to this file and add them.