Implement a more sophisticated markdown parsing engine (#145)

DiscordChatExporter.Core.Markdown/MultilineCodeBlockNode.cs

@@ -0,0 +1,18 @@
+namespace DiscordChatExporter.Core.Markdown
+{
+    public class MultilineCodeBlockNode : Node
+    {
+        public string Language { get; }
+
+        public string Code { get; }
+
+        public MultilineCodeBlockNode(string lexeme, string language, string code)
+            : base(lexeme)
+        {
+            Language = language;
+            Code = code;
+        }
+
+        public override string ToString() => $"<Code [{Language}]> {Code}";
+    }
+}