Fix --profiler option description. (#1417)

Author: WojciechNagorski

src/BenchmarkDotNet/ConsoleArguments/CommandLineOptions.cs

@@ -35,7 +35,7 @@ public class CommandLineOptions
         [Option('d', "disasm", Required = false, Default = false, HelpText = "Gets disassembly of benchmarked code")]
         public bool UseDisassemblyDiagnoser { get; set; }
 
-        [Option('p', "profiler", Required = false, HelpText = "Profiles benchmarked code using selected profiler. Currently the only available is \"ETW\" for Windows.")]
+        [Option('p', "profiler", Required = false, HelpText = "Profiles benchmarked code using selected profiler. Available options: EP/ETW/CV/NativeMemory")]
         public string Profiler { get; set; }
 
         [Option('f', "filter", Required = false, HelpText = "Glob patterns")]