[Fix][DOC] Fix doc tip and caution

[bwcxyk]

Purpose of this pull request

Does this PR introduce any user-facing change?

How was this patch tested?

Check list

• If any new Jar binary package adding in your PR, please add License Notice according
  New License Guide
• If necessary, please update the documentation to describe the new feature. https://github.com/apache/seatunnel/tree/dev/docs
• If you are contributing the connector code, please check that the following files are updated:
  1. Update change log that in connector document. For more details you can refer to connector-v2
  2. Update plugin-mapping.properties and add new connector information in it
  3. Update the pom file of seatunnel-dist
• Update the release-note.

[liunaijie]

this change looks not necessary.

[Hisoka-X]

https://seatunnel.apache.org/docs/2.3.5/connector-v2/source/Rabbitmq/

@liunaijie The website looks like not right. I think this change will be helpful.

[bwcxyk]

Now, The website looks right.
Consistent with other Apache documentation formatting standards.