Update market-hours.mdx (#406)

Added Holiday schedule for BRENT and WTI contracts

Author: hkaliraipyth

pages/price-feeds/market-hours.mdx

@@ -8,3 +8,5 @@ Pyth price feeds follow the [traditional market hours](https://www.cmegroup.com/
 | FX | From Sunday 5PM ET to Friday 5PM ET | Daily maintenance window applies from 5PM ET to 6PM ET, Monday to Thursday. Trading continues during most US holidays |
 | Metals | From Sunday 5PM ET to Friday 5PM ET | Daily maintenance window applies from 5PM ET to 6PM ET, Monday to Thursday. Spot gold and silver trading also follow [CME holiday closures](https://www.cmegroup.com/tools-information/holiday-calendar.html)|
 | Rates | Every weekday from 8AM ET to 5PM ET | Markets are closed on weekends, and follow [NYSE Holidays & Trading Hours](https://www.nyse.com/markets/hours-calendars) |
+| Commodities | WTI Contracts: From Sunday 6PM ET to Friday 5PM ET | WTI Contracts: Daily maintenance window applies from 5PM ET to 6PM ET and follow [CME holiday closures](https://www.cmegroup.com/tools-information/holiday-calendar.html)|
+| Commodities | BRENT Contracts: From Sunday 6PM ET to Friday 6PM ET | BRENT Contracts: Daily maintenance window applies from 6PM ET to 8PM ET, Monday to Thursday and follow [ICE holiday closures](https://www.ice.com/publicdocs/Trading_Schedule.pdf)|