Readded Benchmark

Author: linkdotnet

tests/LinkDotNet.StringBuilder.Benchmarks/AppendBenchmark.cs

@@ -5,6 +5,17 @@ namespace LinkDotNet.StringBuilder.Benchmarks;
 [MemoryDiagnoser]
 public class AppendBenchmarks
 {
+    [Benchmark(Baseline = true)]
+    public string DotNetStringBuilder()
+    {
+        var builder = new System.Text.StringBuilder();
+        builder.AppendLine("That is the first line of our benchmark.");
+        builder.AppendLine("We can multiple stuff in here if want.");
+        builder.AppendLine("The idea is that we can resize the internal structure from time to time.");
+        builder.AppendLine("We can also add other Append method if we want. But we keep it easy for now.");
+        return builder.ToString();
+    }
+
     [Benchmark]
     public string ValueStringBuilder()
     {