Remove Blank Lines

Program.cs

using System;
using System.Collections.Generic;
using System.IO;
using static System.IO.SearchOption;

namespace RemoveBlankLines
{
    class Program
    {
        static void Main()
        {
            string path = @"C:\Users\XXXXX\Documents\GitHub\docs-1\docs\";
            var files = Directory.EnumerateFiles(path, "*.md", AllDirectories);

            //using (System.IO.StreamWriter outfile = new System.IO.StreamWriter(@"C:\_DOCS_SCRIPTS\remove-blank-lines\files_changed.txt"))
            //{
            foreach (var file in files)
            {
                var changed = false;
                var inputLines = File.ReadAllLines(file);
                var outputLines = new List<string>();
                var code = false;
                var lastLine = string.Empty;

                foreach (var line in inputLines)
                {
                    if (line.TrimStart().StartsWith("```"))
                    {
                        if (code)
                        {
                            if (line.TrimStart().StartsWith("```") && lastLine.ToString().Trim().Length == 0)
                            {
                                changed = true;
                                outputLines.RemoveAt(outputLines.Count - 1);
                            }
                        }
                        code = !code;
                    }

                    if (code)
                    {
                        if (lastLine.TrimStart().StartsWith("```") && line.ToString().Trim().Length == 0)
                        {
                            changed = true;
                        }
                        else
                        {
                            outputLines.Add(line);
                        }
                    }
                    else
                    {
                        outputLines.Add(line);
                    }

                    lastLine = line;
                }

                if (changed)
                {
                    //outfile.WriteLine(file.Substring(path.Length));
                    Console.WriteLine(file.Substring(path.Length));
                    File.WriteAllLines(file, outputLines);
                }
            }
            //}
        }
    }
}