DOC: Update metadata.list_fields docs

Author: robertmaierle

include/databento/enums.hpp

@@ -386,7 +386,7 @@ enum StatusReason : std::uint16_t {
   // The news has been fully disseminated and times are available for the
   // resumption in quoting and trading.
   NewsAndResumptionTimes = 32,
-  // The relevants news was not forthcoming.
+  // The relevant news was not forthcoming.
   NewsNotForthcoming = 33,
   // Halted for order imbalance.
   OrderImbalance = 40,
@@ -414,7 +414,7 @@ enum StatusReason : std::uint16_t {
   // Halted due to the carryover of a market-wide circuit breaker from the
   // previous trading day.
   MarketWideHaltCarryover = 123,
-  // Resumption due to the end of the a market-wide circuit breaker halt.
+  // Resumption due to the end of a market-wide circuit breaker halt.
   MarketWideHaltResumption = 124,
   // Halted because quotation is not available.
   QuotationNotAvailable = 130,