Fix the docs for HourCycle (#6038)

Fixes #6030

components/locale_core/src/preferences/extensions/unicode/keywords/hour_cycle.rs

@@ -9,12 +9,12 @@ enum_keyword!(
     ///
     /// The valid values are listed in [LDML](https://unicode.org/reports/tr35/#UnicodeHourCycleIdentifier).
     HourCycle {
-        /// Hour system using 1–12; corresponds to 'h' in patterns
-        ("h11" => H11),
-        /// Hour system using 0–23; corresponds to 'H' in patterns
+        /// The typical 12-hour clock. Hour system using 1–12; corresponds to 'h' in patterns.
         ("h12" => H12),
-        /// Hour system using 0–11; corresponds to 'K' in patterns
+        /// The 24-hour clock. Hour system using 0–23; corresponds to 'H' in patterns.
         ("h23" => H23),
-        /// Hour system using 1–24; corresponds to 'k' in pattern
+        /// Variant of the 12-hour clock only used in Japan. Hour system using 0–11; corresponds to 'K' in patterns.
+        ("h11" => H11),
+        /// __Not actually in use!__ See `H23` above for the 24-hour clock! Included for theoretical completeness. Hour system using 1–24; corresponds to 'k' in pattern.
         ("h24" => H24),
 }, "hc");