Rename Republic -> Ren and fix links

readme.md

@@ -34,7 +34,7 @@ Decentralized finance (#defi) is the movement that leverages open source softwar
   - [Hydro Protocol](https://hydroprotocol.io/) ([fork announcement](https://medium.com/hydro-protocol/why-we-are-forking-0x-97dc48ee0426), [source code](https://github.com/HydroProtocol), original white paper removed from website but is archived [here](https://whitepaper.io/document/170/hydro-protocol-whitepaper)) - A fork of 0x from DDEX with new order schema, a new matching engine, a different liquidity sharing model, and no ZRX token
   - [Kyber](https://kyber.network) ([source code](https://github.com/kybernetwork), original white paper removed from website but is archived [here](https://whitepaper.io/document/43/kyber-network-whitepaper)) - On-chain protocol for decentralized token swaps and for easy application integration
   - [Loopring](https://loopring.org) ([source code](https://github.com/loopring), [white paper](https://loopring.org/resources.html)) - Protocol for building decentralized exchanges
-  - [Republic](https://republicprotocol.com) ([source code](https://github.com/republicprotocol), [white paper](https://republicprotocol.com/litepaper.pdf)) - Decentralized dark pool protocol for atomic swaps of digital assets
+  - [Ren](https://renproject.io/) ([source code](https://github.com/renproject), [white paper](https://renproject.io/litepaper.pdf)) - Decentralized dark pool protocol for atomic swaps of digital assets formerly known as Republic
   - [Swap / AirSwap's Protocol](https://airswap.io) ([source code](https://github.com/airswap), [white paper](https://swap.tech/whitepaper/)) - Protocol for peer-to-peer trading of ERC-20 tokens
   - [Uniswap](https://uniswap.io) ([source code](https://github.com/Uniswap), [white paper](https://hackmd.io/C-DvwDSfSxuh-Gd4WKE_ig)) - "Public good"-oriented interface for ERC-20 token exchange with zero rent-extraction.
 
@@ -71,7 +71,7 @@ Decentralized finance (#defi) is the movement that leverages open source softwar
   - Ethereum
     - ~~[Basis](https://www.basis.io) ([white paper](https://www.basis.io/basis_whitepaper_en.pdf)) - Algorithmic stablecoin that "can be robustly pegged to arbitrary assets or baskets of goods"~~ - shut down due to inability to release tokens without securities classification in the US
     - [Carbon](https://fiat.carbon.money) ([white paper](https://www.carbon.money/whitepaper.pdf)) - Stablecoin that will be composed of a basket of whitelisted tokens that is "functionally fiat-backed with the potential to whitelist an algorithmic stablecoin"
-    - [Ampleforth](https://www.ampleforth.org/) ([rebranding announcement](https://medium.com/ampleforth/fragments-to-ampleforth-thoughts-behind-the-name-change-e38bf95077b2), [white paper](https://www.ampleforth.org/paper/)) - Monetary policy-based stablecoin protocol formerly known as Fragments
+    - [Ampleforth](https://www.ampleforth.org/) ([rebranding announcement](https://medium.com/ampleforth/fragments-to-ampleforth-thoughts-behind-the-name-change-e38bf95077b2), [source code](https://github.com/ampleforth), [white paper](https://www.ampleforth.org/paper/)) - Monetary policy-based stablecoin protocol formerly known as Fragments
     - [Terra](https://terra.money) ([white paper](https://terra.money/static/Terra_White_paper.pdf)) - Protocol that ensures price-stability by algorithmically expanding and contracting supply
 
 <a name="lending-protocols" />
@@ -100,7 +100,7 @@ Decentralized finance (#defi) is the movement that leverages open source softwar
   - [Market](https://marketprotocol.io) ([source code](https://github.com/MARKETProtocol), [white paper](https://marketprotocol.io/assets/MARKET_Protocol-Whitepaper.pdf)) - Protocol for structuring peer-to-peer agreements that settle in the future based on the price of a reference asset
   - [UMA](https://umaproject.org) ([white paper](https://umaproject.org/UMA-whitepaper.pdf)) - Protocol that allows any two counterparties to design and create their own financial contracts that are secured with economic incentives alone, making them self-enforcing and "universally accessible"
   - [Veil](https://veil.co) ([launch post](https://medium.com/veil-blog/introducing-veil-649036f9d492)) - Peer-to-peer prediction market and derivatives platform built on top of Augur, 0x, and Ethereum
-  - [Guesser](https://guesser.io/) ([launch post](https://medium.com/guesser/insights-into-augur-62ad41f4cf38)) - Hottest short markets over the top of Augur
+  - [Guesser](https://www.guesser.io/landing) ([launch post](https://medium.com/guesser/insights-into-augur-62ad41f4cf38)) - Hottest short markets over the top of Augur
 
 
 <a name="bundling-protocols" />
@@ -126,7 +126,7 @@ Decentralized finance (#defi) is the movement that leverages open source softwar
 - Ethereum
   - [Harbor/R-Token](https://harbor.com) ([source code](https://github.com/harborhq), [white paper](https://harbor.com/rtokenwhitepaper.pdf)) - Compliant protocol for standardizing crypto-securities issuance and trading
   - [Polymath/ST-20](https://polymath.network) ([source code](https://github.com/PolymathNetwork), original white paper removed from website but is archived [here](https://whitepaper.io/document/57/polymath-whitepaper)) - Platform for tokenizing securities
-  - [Abacus](https://abacusprotocol.com) ([soure code](https://github.com/abacusfi), [white paper](https://github.com/abacusfi/whitepaper/blob/master/whitepaper.pdf)) - Protocol for permissioned tokens
+  - [Abacus](https://abacusfi.com/) ([soure code](https://github.com/abacusfi), [white paper](https://github.com/abacusfi/whitepaper/blob/master/whitepaper.pdf)) - Protocol for permissioned tokens
 - [Stellar](https://www.stellar.org/) ([source code](https://github.com/stellar/stellar-core), [docs](https://www.stellar.org/developers/guides/concepts/assets.html)) - Stellar has first-party support for issuing arbitrary tokens
 
 <a name="kyc-aml-identity" />