Update evm.mdx (#674)

fix broken exporer link

Author: KemarTiti

pages/price-feeds/contract-addresses/evm.mdx

@@ -39,7 +39,7 @@ Pyth is currently available on the EVM networks below using Pyth Stable price so
 | Hemi                  | [`0x2880aB155794e7179c9eE2e38200202908C17B43`](https://explorer-b81c3bd8.hemi.xyz/address/0x2880aB155794e7179c9eE2e38200202908C17B43)     |
 | Horizen EON           | [`0xA2aa501b19aff244D90cc15a4Cf739D2725B5729`](https://eon-explorer.horizenlabs.io/address/0xA2aa501b19aff244D90cc15a4Cf739D2725B5729)    |
 | HyperEVM              | [`0xe9d69CdD6Fe41e7B621B4A688C5D1a68cB5c8ADc`](https://purrsec.com/address/0xe9d69cdd6fe41e7b621b4a688c5d1a68cb5c8adc)                    |
-| XCHAIN (IDEX) Mainnet | [`0x2880aB155794e7179c9eE2e38200202908C17B43`](https://xchain-explorer.idex.io/address/0x2880aB155794e7179c9eE2e38200202908C17B43)        |
+| XCHAIN (IDEX) Mainnet | [`0x2880aB155794e7179c9eE2e38200202908C17B43`](https://xchain-explorer.kuma.bid/address/0x2880aB155794e7179c9eE2e38200202908C17B43)       |
 | Injective inEVM       | [`0xA2aa501b19aff244D90cc15a4Cf739D2725B5729`](https://inevm.calderaexplorer.xyz/address/0xA2aa501b19aff244D90cc15a4Cf739D2725B5729)      |
 | Ink                   | [`0x2880aB155794e7179c9eE2e38200202908C17B43`](https://explorer.inkonchain.com/address/0x2880aB155794e7179c9eE2e38200202908C17B43)        |
 | Iota                  | [`0x8D254a21b3C86D32F7179855531CE99164721933`](https://explorer.evm.iota.org/address/0x8D254a21b3C86D32F7179855531CE99164721933)          |