Fix pt2e quant ptq x86 section title issue

[leslie-fang-intel]

Description

The previous section title for pt2e ptq quant of X86 Inductor is incorrect. Fix it in this PR.

Checklist

• The issue that is being fixed is referred in the description (see above "Fixes #ISSUE_NUMBER")
• Only one issue is addressed in this pull request
• Labels from the issue that this PR is fixing are added to this pull request
• No unnecessary issues are included into this pull request.

cc @svekars @brycebortree

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/tutorials/2746

• 📄 Preview Python docs built from this PR

Note: Links to docs will display an error until the docs builds have been completed.

✅ No Failures

As of commit 4a2d17d with merge base 219a9e3 ():
💚 Looks good so far! There are no failures yet. 💚

This comment was automatically generated by Dr. CI and updates every 15 minutes.

[leslie-fang-intel]

Hi @jerryzh168, please kindly help to take a look.

[leslie-fang-intel]

Oh, I think the title format issue already been addressed in #2717