replace REVERT from EIP 140 to EIP 206

according to ethereum/yellowpaper#229

the link looks right but the showing EIP number is wrong

README.md

@@ -22,10 +22,10 @@ First review [EIP-1](EIPS/eip-1.md). Then clone the repository and add your EIP
 | [96](https://github.com/ethereum/EIPs/pull/210)         | Blockhash refactoring                                                               | Vitalik Buterin       | Core        | Accepted  |
 | [98](https://github.com/ethereum/EIPs/pull/98)          | Removal of intermediate state roots from receipts                                   | Vitalik Buterin       | Core        | Accepted  |
 | [100](https://github.com/ethereum/EIPs/issues/100)      | Change difficulty adjustment to target mean block time including uncles	            | Vitalik Buterin       | Core        | Accepted  |
-| [140](https://github.com/ethereum/EIPs/pull/206)        | REVERT instruction in the Ethereum Virtual Machine                                  | Beregszaszi, Mushegian| Core        | Accepted  |
 | [196](https://github.com/ethereum/EIPs/pull/213)        | Precompiled contracts for addition and scalar multiplication on the elliptic curve alt_bn128 | Reitwiessner | Core        | Accepted  |
 | [197](https://github.com/ethereum/EIPs/pull/212)        | Precompiled contracts for optimal Ate pairing check on the elliptic curve alt_bn128 | Buterin, Reitwiessner | Core        | Accepted  |
 | [198](https://github.com/ethereum/EIPs/pull/198)        | Precompiled contract for bigint modular exponentiation				                      | Vitalik Buterin       | Core        | Accepted  |
+| [206](https://github.com/ethereum/EIPs/pull/206)        | REVERT instruction in the Ethereum Virtual Machine                                  | Beregszaszi, Mushegian| Core        | Accepted  |
 | [211](https://github.com/ethereum/EIPs/pull/211)        | New opcodes: RETURNDATASIZE and RETURNDATACOPY                                      | Christian Reitwiessner| Core        | Accepted  |
 | [214](https://github.com/ethereum/EIPs/pull/214)        | New opcode STATICCALL                                                               | Buterin, Reitwiessner | Core        | Accepted  |
 | [658](https://github.com/ethereum/EIPs/pull/658)        | Embedding transaction return data in receipts                                       | Nick Johnson          | Core        | Accepted  |