[Fix][Docs] Fix word spelling errors

[chocolateBlack]

Corrected the cluster status verification URL and updated the expected number of nodes in both Chinese and English Docker documentation. This ensures that users can accurately verify the cluster's status after starting it.

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 necessary, please update incompatible-changes.md to describe the incompatibility caused by this PR.
• If you are contributing the connector code, please check that the following files are updated:
  1. Update plugin-mapping.properties and add new connector information in it
  2. Update the pom file of seatunnel-dist
  3. Add ci label in label-scope-conf
  4. Add e2e testcase in seatunnel-e2e
  5. Update connector plugin_config

[chl-wxp]

Thank you for your PR. Please modify the title of the PR to indicate which one of bugfix, improvement, and feature, and indicate which module.