Add Hemi explorer hyperlink to evm.mdx (#512)

Author: kyle-pyth

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

@@ -34,7 +34,7 @@ Pyth is currently available on the EVM networks below using Pyth Stable price so
 | Gnosis                | [`0x2880aB155794e7179c9eE2e38200202908C17B43`](https://gnosisscan.io/address/0x2880ab155794e7179c9ee2e38200202908c17b43)                     |
 | Gravity               | [`0x2880aB155794e7179c9eE2e38200202908C17B43`](https://explorer.gravity.xyz/address/0x2880aB155794e7179c9eE2e38200202908C17B43)              |
 | Hedera                | [`0xA2aa501b19aff244D90cc15a4Cf739D2725B5729`](https://hashscan.io/mainnet/contract/0.0.4622850)                                             |
-| Hemi                  | `0x2880aB155794e7179c9eE2e38200202908C17B43`                                                                                                 |
+| Hemi                  | [`0x2880aB155794e7179c9eE2e38200202908C17B43`](https://explorer-b81c3bd8.hemi.xyz/address/0x2880aB155794e7179c9eE2e38200202908C17B43)        |
 | Horizen EON           | [`0xA2aa501b19aff244D90cc15a4Cf739D2725B5729`](https://eon-explorer.horizenlabs.io/address/0xA2aa501b19aff244D90cc15a4Cf739D2725B5729)       |
 | XCHAIN (IDEX) Mainnet | [`0x2880aB155794e7179c9eE2e38200202908C17B43`](https://xchain-explorer.idex.io/address/0x2880aB155794e7179c9eE2e38200202908C17B43)           |
 | Injective inEVM       | [`0xA2aa501b19aff244D90cc15a4Cf739D2725B5729`](https://inevm.calderaexplorer.xyz/address/0xA2aa501b19aff244D90cc15a4Cf739D2725B5729)         |