Fix wrong table format in client-libraries-go.md

[xuthus5]

Motivation

The official markdown table is a misplaced layout .
fix go docs markdown table layout.

Modifications

fix go docs markdown table layout.

Verifying this change

• Make sure that the change passes the CI checks.

(Please pick either of the following options)

This change is a trivial rework / code cleanup without any test coverage.

Does this pull request potentially affect one of the following parts:

If yes was chosen, please highlight the changes

• Dependencies (does it add or upgrade a dependency): (no)
• The public API: (no)
• The schema: (no)
• The default values of configurations: (no)
• The wire protocol: (no)
• The rest endpoints: (no)
• The admin cli options: (no)
• Anything that affects deployment: (no)

Documentation

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Need to update docs?

• doc-required
  (Your PR needs to update docs and you will update later)

• doc-not-needed
  (Please explain why)

• doc
  (Your PR contains doc changes)

• doc-complete
  (Docs have been already added)

[hezhangjian]

Thanks for your contribution, and welcome to apache pulsar community!

[momo-jun]

@xuthus5 thanks for contributing to Pulsar docs! I've updated the doc label from doc-required to doc.