Format file references as markdown links

#L

Format

[filename.el:42](relative/path/to/filename.el#L42)

[filename.el:42-50](relative/path/to/filename.el#L42-L50)

[filename.el](relative/path/to/filename.el)

Important

• The link text uses

  :

  for line numbers (e.g.,

  filename.el:42

  ).
• The URL uses

  #L

  for line numbers (e.g.,

  filename.el#L42

  ).
• For ranges, the link text uses

  -

  (e.g.,

  filename.el:42-50

  ) and the URL uses

  -L

  (e.g.,

  filename.el#L42-L50

  ).
• The range must appear in both the link text and the URL.

[filename.el#L42-L50](filename.el#L42)

Rules

• Use paths relative to the project root.
• Include line numbers when they are relevant (e.g., error locations, function definitions, modified lines).
• Use line ranges when referring to a block of code.
• The link text should be the filename (or relative path if needed for clarity) followed by the line number.