Improve the qmk lint readme check (qmk#13941)

* improve lint readme check

* improve if

lib/python/qmk/cli/lint.py

@@ -4,7 +4,7 @@
 
 from qmk.decorators import automagic_keyboard, automagic_keymap
 from qmk.info import info_json
-from qmk.keyboard import keyboard_completer
+from qmk.keyboard import find_readme, keyboard_completer
 from qmk.keymap import locate_keymap
 from qmk.path import is_keyboard, keyboard
 
@@ -31,7 +31,8 @@ def lint(cli):
  ok = True
  keyboard_path = keyboard(cli.config.lint.keyboard)
  keyboard_info = info_json(cli.config.lint.keyboard)
- readme_path = keyboard_path / 'readme.md'
+ readme_path = find_readme(cli.config.lint.keyboard)
+ missing_readme_path = keyboard_path / 'readme.md'
 
  # Check for errors in the info.json
  if keyboard_info['parse_errors']:
@@ -43,9 +44,9 @@ def lint(cli):
  cli.log.error('Warnings found when generating info.json (Strict mode enabled.)')
 
  # Check for a readme.md and warn if it doesn't exist
- if not readme_path.exists():
+ if not readme_path:
  ok = False
- cli.log.error('Missing %s', readme_path)
+ cli.log.error('Missing %s', missing_readme_path)
 
  # Keymap specific checks
  if cli.config.lint.keymap: