Correct documentation for SequentialGuidValueGenerator (#20696)

src/EFCore/ValueGeneration/SequentialGuidValueGenerator.cs

@@ -8,10 +8,19 @@
 namespace Microsoft.EntityFrameworkCore.ValueGeneration
 {
  /// <summary>
- /// Generates sequential <see cref="Guid" /> values using the same algorithm as NEWSEQUENTIALID()
- /// in Microsoft SQL Server. This is useful when entities are being saved to a database where sequential
- /// GUIDs will provide a performance benefit. The generated values are non-temporary, meaning they will
- /// be saved to the database.
+ /// <para>
+ /// Generates sequential <see cref="Guid" /> values optimized for use in Microsoft SQL server clustered
+ /// keys or indexes, yielding better performance than random values. This is the default generator for
+ /// SQL Server <see cref="Guid" /> columns which are set to be generated on add.
+ /// </para>
+ /// <para>
+ /// See https://docs.microsoft.com/sql/t-sql/functions/newsequentialid-transact-sql.
+ /// Although this generator achieves the same goals as SQL Server's NEWSEQUENTIALID, the algorithm used
+ /// to generate the GUIDs is different.
+ /// </para>
+ /// <para>
+ /// The generated values are non-temporary, meaning they will be saved to the database.
+ /// </para>
  /// </summary>
  public class SequentialGuidValueGenerator : ValueGenerator<Guid>
  {