Taken to the 'develop' branch after typing https://docs.taichi-lang.org/

[writinwaters]

• Laptop: MacBook Pro
• Web browser: Chrome
• How to reproduce: After I type docs.taichi-lang.org, the landing page shows the 'develop' branch. I suspect this is due to the cache. And If I use an Incognito window, then this issue would not occur.
• Expected behavior: The landing page ought to show the latest published release, v1.1.3 in this case, not the develop release.