add Bitauth IDE and Chaingraph

README.md

@@ -203,7 +203,8 @@ Bitcoin Cash is supported on hundreds of exchanges, these are a few.
 ## Network
 
 - [Blockchain Explorer](https://explorer.bitcoinunlimited.info/) [[src]](https://github.com/sickpig/bch-rpc-explorer) - Database-free, self-hosted Bitcoin Cash explorer, via RPC, [(also available for Testnet)](https://texplorer.bitcoinunlimited.info/)
-- [smartscan Exploter](https://www.smartscan.cash/) [[src]](https://github.com/jay-bch/smartbch-explorer) - Explorer for smartBCH.
+- [Chaingraph](https://chaingraph.cash/) [[src]](https://github.com/bitauth/chaingraph) - A multi-node blockchain indexer and GraphQL API.
+- [Smartscan Explorer](https://www.smartscan.cash/) [[src]](https://github.com/jay-bch/smartbch-explorer) - Explorer for smartBCH.
 - [SLP Explorer](https://simpleledger.info/) [[src]](https://github.com/blockparty-sh/slp-explorer) - Open source explorer for SLP tokens.
 - [marketcap.cash](https://www.marketcap.cash/) - Market Capitalization Bitcoin Cash SEP20 Tokens on SmartBCH 
 - [privacy stats](https://stats.cash/#/) - recent list and totals of shuffles & fusions.
@@ -242,6 +243,7 @@ Bitcoin Cash is supported on hundreds of exchanges, these are a few.
 
 - [CashAccount](https://www.cashaccount.info/) - Online utility for cashaccounts (address handles).
 - [Bitcoin.com Tools](https://tools.bitcoin.com/) - A mix of Bitcoin utilities.
+- [Bitauth IDE](https://ide.bitauth.com/) [[src]](https://github.com/bitauth/bitauth-ide) - An online IDE for developing Bitcoin Cash contracts.
 
 ## Web