Fix workflow push logic for README navigation updates

[Copilot]

GitHub Action successfully generates README article navigation but fails to push changes due to faulty conditional logic.

Changes

• Simplified commit/push flow: Moved git push inside the commit conditional block instead of a separate step that checked for uncommitted files after commit
• Removed redundant push step: The separate "Push changes" step was checking git status --porcelain after files were already committed, causing the condition to always fail

Before:

- name: Commit changes
  run: |
    if git status --porcelain README.md | grep README.md; then
      git config user.name "github-actions[bot]"
      git config user.email "github-actions[bot]@users.noreply.github.com"
      git add README.md
      git commit -m "chore: update README nav"
    fi

- name: Push changes
  if: success()
  run: |
    if git rev-parse --verify HEAD >/dev/null 2>&1 && git status --porcelain README.md | grep README.md; then
      git push
    fi

After:

- name: Commit changes
  run: |
    git config user.name "github-actions[bot]"
    git config user.email "github-actions[bot]@users.noreply.github.com"
    if git status --porcelain README.md | grep README.md; then
      git add README.md
      git commit -m "chore: update README nav"
      git push
    fi

Original prompt

github action，最终没有生成 readme 里面的文章导航

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

[feihong247]

这是来自QQ邮箱的假期自动回复邮件。你好，我最近正在休假中，无法亲自回复你的邮件。我将在假期结束后，尽快给你回复。