fix warnings

src/Humanizer/ClockNotationRounding.cs

@@ -1,8 +1,18 @@
 namespace Humanizer
 {
+    /// <summary>
+    /// Options for specifying readable clock notation
+    /// </summary>
     public enum ClockNotationRounding
     {
+        /// <summary>
+        /// Do not round minutes
+        /// </summary>
         None,
+
+        /// <summary>
+        /// Round time to nearest five minutes
+        /// </summary>
         NearestFiveMinutes
     }
 }

src/Humanizer/Localisation/ResourceKeys.TimeUnitSymbol.cs

@@ -16,8 +16,6 @@ public static class TimeUnitSymbol
             /// Generates Resource Keys according to convention.
             /// </summary>
             /// <param name="unit">Time unit, <see cref="TimeUnit"/>.</param>
-            /// <param name="count">Number of units, default is One.</param>
-            /// <param name="toWords">Result to words, default is false.</param>
             /// <returns>Resource key, like TimeSpanHumanize_SingleMinute</returns>
             public static string GetResourceKey(TimeUnit unit)
             {