Add GRG: Rigo Token

• I understand that token listing is not required to use the Uniswap Interface with a token.
• I understand that filing an issue or adding liquidity does not guarantee addition to the Uniswap default token list.
• I will not ping the Discord about this listing request.

Please provide the following information for your token.

Token Address: 0x4fbb350052bca5417566f188eb2ebce5b19bc964
Token Name (from contract): Rigo Token
Token Decimals (from contract): 18
Token Symbol (from contract): GRG
Uniswap V2 Pair Address of Token: 0x6fa835713c6daedfa7a8bd241c8d658f51df1fe0

Link to the official homepage of token: https://rigoblock.com
Link to CoinMarketCap or CoinGecko page of token: https://coinmarketcap.com/currencies/rigoblock/

Additional info:

• early prototypes date back to late 2016

• RigoBlock protocol V2 live since November 2018 (integrated with 0x protocol)

• native Uniswap integration, called Pooliswap (https://pooliswap.rigo.network)

• Uniswap GRG-ETH pool with 974 GRG and 12 ETH

Review the repository's current token-list structure and contribution requirements, using the supplied contract address, pair address, token metadata, and project links as verification inputs. Done means the request is either accepted into the default token list or rejected with a documented reason.