Update monitor-datadog-integration.md

[huoyao1125]

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[gemini-code-assist]

Summary of Changes

Hello @huoyao1125, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

I've updated the documentation for the TiDB Cloud Datadog integration. The primary goal of these changes is to streamline the process for users to install and access the TiDB Cloud dashboard within Datadog, ensuring the instructions are clear and accurate for different integration versions.

Highlights

• Datadog Dashboard Installation: I've updated the instructions for installing the TiDB Cloud dashboard in Datadog, removing the manual JSON import steps and providing a more direct installation path for new users, while also clarifying the experience for existing users.
• Viewing Pre-built Dashboard: I've simplified the steps for viewing the pre-built Datadog dashboard and added clearer notes explaining how the "Dashboard" link behaves differently for "Preview" and "Beta" versions of the Datadog integration.

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[gemini-code-assist]

Code Review

This pull request updates the Datadog integration documentation, likely reflecting that the integration is now generally available within Datadog. The changes simplify the instructions for setting up the dashboard and viewing metrics. My review provides a couple of suggestions to improve clarity and conciseness, such as rephrasing a passive statement and removing redundant text, in line with the documentation style guide.

[gemini-code-assist]

The instruction for users who have previously installed the integration is a bit unclear. It's presented as a single-item list that states a fact rather than providing an action for the user to take. To improve clarity and align with the style guide's principles of active voice and clear instructions, consider rephrasing this as a simple sentence. ¹²

Style Guide References

Suggested change

	For users who have previously installed the TiDB Cloud integration in Datadog:
	1. The [**TiDB Cloud Dynamic Tracker**](https://app.datadoghq.com/dash/integration/32021/tidb-cloud-dynamic-tracker) dashboard is displayed in your [**Dashboard List**](https://app.datadoghq.com/dashboard/lists).
	For users who have previously installed the TiDB Cloud integration in Datadog, the [**TiDB Cloud Dynamic Tracker**](https://app.datadoghq.com/dash/integration/32021/tidb-cloud-dynamic-tracker) dashboard is automatically available in your [**Dashboard List**](https://app.datadoghq.com/dashboard/lists).

Footnotes

1. The style guide recommends using active voice. (link) ↩

2. The style guide recommends providing clear step instructions. (link) ↩

[gemini-code-assist]

The phrase "Please note the following:" is redundant within a Note block. To make the text more concise and adhere to the present tense preference, you can remove the introductory phrase and rephrase the verb. ¹²

Style Guide References

Suggested change

	> Please note the following:
	>
	> - Before the pending [PR](https://github.com/DataDog/integrations-extras/pull/2751) is merged by Datadog, the **Dashboard** link redirects to the legacy dashboard, which does not include the latest metrics introduced in the preview version.
	> - Once the pending [PR](https://github.com/DataDog/integrations-extras/pull/2751) is merged , the **Dashboard** link in the **Datadog** section will redirect to the new dashboard.
	> - For Datadog integration (Preview), the **Dashboard** link redirects to the new dashboard, which will include the latest metrics introduced in the preview version.
	> - For Datadog integration (Beta), the **Dashboard** link redirects to the legacy dashboard, which does not include the latest metrics introduced in the preview version.
	> - For Datadog integration (Preview), the **Dashboard** link redirects to the new dashboard, which includes the latest metrics introduced in the preview version.
	> - For Datadog integration (Beta), the **Dashboard** link redirects to the legacy dashboard, which does not include the latest metrics introduced in the preview version.

Footnotes

1. The style guide advises avoiding unnecessary words and repetition to keep the documentation concise. (link) ↩

2. The style guide recommends using present tense unless describing historical behavior. (link) ↩