Update spellcheck.yml

Signed-off-by: Darren <27513732@qq.com>

Author: chendelin1982

.github/workflows/spellcheck.yml

@@ -13,11 +13,11 @@ jobs:
     - uses: rojopolis/spellcheck-github-actions@0.41.0
       name: Spellcheck
       with:
-        source_files: i18n/en/docusaurus-plugin-content-docs/current/*
+        source_files: i18n/en/docusaurus-plugin-content-docs/current/**/*.md
         task_name: Markdown
         output_file: spellcheck-output.txt
     - uses: actions/upload-artifact@v3
       if: '!cancelled()' # Do not upload artifact if job was cancelled
       with:
         name: Spellcheck Output
-        path: spellcheck-output.txt
+        path: spellcheck-output.txt