[tuhaihe]

The homepage said Cloudberry is derived from "the open-source version of the Pivotal Greenplum Database". That is inaccurate: Pivotal was acquired by VMware in 2019, before Cloudberry was forked in 2022, and "Pivotal Greenplum" named the commercial distribution rather than the open-source project.

Refer to it as "the open-source Greenplum® Database" instead, matching the wording now used in the main repository's README.

Assisted-by: Claude Code

closes: #ISSUE_Number

---

Change logs

Describe your change clearly, including what problem is being solved or what document is being added or updated.

Contributor's checklist

Here are some reminders before you submit your pull request:

• Make sure that your Pull Request has a clear title and commit message. You can take the Git commit template as a reference.
• Learn the code contribution and doc contribution guides for better collaboration.
• Make sure that your changes deployment preview is successful.
• List your communications in the GitHub Issues or Discussions (if has or needed).
• Feel free to ask for the cloudberry committers or other people to help review and approve.