Suggest to use online services like Grammarly to make documentation more concise and easier to read

[visortelle]

Many Pulsar contributors aren't native English speakers.

Services like Grammarly suggest rephrasing complex things in simple words.

Not all people know about these services. It's probably a good idea to suggest to use them during writing or editing documentation here: https://pulsar.apache.org/contribute/document-intro/

Alternatively, it may be ChatGPT.

I'm sure it would help to improve the documentation, but not sure that recommending a commercial service aligns with the ASF guidelines for sites.

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CNCF recommends it here: https://tag-app-delivery.cncf.io/zh/blog/contributing-to-wg-platforms/#step-3---drafting--reviews

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Also, I think it makes sense to add a link to https://pulsar.apache.org/contribute/document-intro/ and include a list of basic recommendations to the apache/pulsar-site repository's PULL_REQUEST_TEMPLATE.md to increase the chances that the contributor will read them.