Doc improvements

[henadzit]

Description

• Simplify the "Why was Tortoise ORM built?" section
• Improve the setup and router pages
• Remove changelog from search since it ranks above all pages but is not very useful

Motivation and Context

...

How Has This Been Tested?

make docs

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added the changelog accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[Copilot]

Pull Request Overview

This PR improves and simplifies the documentation for Tortoise ORM by clarifying language and updating code examples where needed. Key changes include:

• Refining the "Initialize Your Application" section in docs/setup.rst with updated code examples and clearer explanations.
• Enhancing wording and formatting in docs/router.rst, docs/index.rst, docs/databases.rst, and README.rst to improve consistency and clarity.
• Adding a no-search directive in CHANGELOG.rst to optimize documentation search behavior.

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
docs/setup.rst	Updated initialization instructions and code example changes.
docs/router.rst	Clarified router configuration and adjusted instructional text.
docs/index.rst	Simplified overview of Tortoise ORM purpose and benchmarks.
docs/databases.rst	Streamlined database URL documentation.
README.rst	Matched introductory text changes with docs/index.rst.
CHANGELOG.rst	Added a no-search directive to the changelog.

Comments suppressed due to low confidence (1)

docs/setup.rst:24

• The comment above this code still refers to the app name as 'models', but the code uses 'app' as the key. Please update the comment to reflect the new naming for clarity.

modules={'app': ['app.models']}

[codspeed-hq]

CodSpeed Performance Report

Merging #1962 will not alter performance

_{Comparing henadzit:chore/improve-docs (8a0b2f8) with develop (8ee43fa)}

Summary

✅ 16 untouched benchmarks

[coveralls]

Pull Request Test Coverage Report for Build 15463537917

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 89.668%

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Totals
Change from base Build 15429545687:	0.0%
Covered Lines:	6674
Relevant Lines:	7263

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💛 - Coveralls