chore(tools): exclude tutorials/README.md from sync (#1112)

- Add tutorials/README.md to exclusion patterns
- Remove file from adev-ja directory
- This file is not intended for translation

Author: lacolaco

adev-ja/src/content/tutorials/README.md

@@ -13,6 +13,7 @@ const localizedFilePatterns: Array<string | readonly string[]> = [
     '!src/content/**/license.md',
     '!src/content/kitchen-sink.md',
     '!src/content/examples/**/readme.md',
+    '!src/content/tutorials/README.md',
   ],
   // Tutorial config files
   'src/content/tutorials/**/config.json',