Merge pull request #20 from xledger/typo

Fix typo.

Author: isaksky

Xledger.Collections/ImmSet.cs

@@ -79,7 +79,7 @@ public static ImmSet<T> Build<T>(BuildSet<T> fill, int capacity = 0, bool trimEx
 [DebuggerDisplay("Count = {Count}")]
 [DebuggerTypeProxy(typeof(ImmSet<>.DebugView))]
 #if NET8_0_OR_GREATER
-[System.Runtime.CompilerServices.CollectionBuilder(typeof(ImmSet), nameof(ImmArray.Of))]
+[System.Runtime.CompilerServices.CollectionBuilder(typeof(ImmSet), nameof(ImmSet.Of))]
 #endif
 public sealed class ImmSet<T> : IReadOnlyCollection<T>, ISet<T>, IEquatable<ImmSet<T>>, ICollection
 #if NET6_0_OR_GREATER