Added new getting started guide

Thanks @MinnDevelopment for his awesome work on
the JDA guide that had no influence here at all.

docs/guides/samples/intro/logging.cs

@@ -0,0 +1,22 @@
+using Discord;
+using System;
+using System.Threading.Tasks;
+
+namespace MyBot
+{
+	public class Program
+	{
+		public static void Main(string[] args)
+			=> new Program().MainAsync().GetAwaiter().GetResult();
+
+		public async Task MainAsync()
+		{
+		}
+
+		private Task Log(LogMessage msg)
+		{
+			Console.WriteLine(msg.ToString());
+			return Task.CompletedTask;
+		}
+	}
+}