Code execution on file wiht CRLF does not work, fails to parse

[John Pywtorak]

Describe the bug
Code execution on file wiht CRLF does not work, fails to parse

To Reproduce
Create a text markdown file with CRLF vs LF as the line-endings.

Expected behavior
Execute the code block.

Desktop (please complete the following information):

• OS: Windows 10, but CRLF can appear on *nix OS filesystems.

This is the guilty line of code

slides/internal/code/code.go

Line 27 in bd5582c

 var re = regexp.MustCompile("(?s)(?:```|~~~)(\\w+)\n(.*?)\n(?:```|~~~)\\s?")