feat: support google tag manager template

[zhu-xiaowei]

Description

1. support google tag manager

General Checklist

• [ ] Added new tests to cover change, if needed
• [ ] Security oriented best practices and standards are followed (e.g. using input sanitization, principle of least privilege, etc)
• [x] Documentation update for the change if required
• [ ] PR title conforms to conventional commit style
• [ ] If breaking change, documentation/changelog update with migration instructions

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 100.00%. Comparing base (17d59a3) to head (047751d).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #45 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 25 25 Lines 1129 1129 Branches 225 225 ========================================= Hits 1129 1129 ```

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[zhu-xiaowei]

add gtm template usage in README

done.