docs: fix typos and incorrect internal links

[Copilot]

Corrects spelling errors, grammar issues, and broken internal links across documentation files.

Spelling fixes:

• documenation → documentation (Go client)
• secondar → secondary (Go client)
• bellow → below (replication storage)
• world → would (replication storage)

Grammar fixes:

• Removed redundant "persist" in replication storage description
• Fixed double-space formatting

Link corrections:

• Updated client SDK links in getting-started.mdx: /docs/clients/* → /clients/* to match actual route structure

Original prompt

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This section details on the original issue you should resolve

<issue_title>feat: refine the docs and fixes the typo</issue_title>
<issue_description>### Motivation

We need to refine our docs and fix some typos or wrong links. Some requirements:

• Using multiple small PR to create a draft for reviewing.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes feat: refine the docs and fixes the typo #2

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