Update index.md

[amandasenaratne]

Purpose

This addresses multiple issues in the home page documentation snippet, including CSS syntax errors, HTML semantic improvements, and Jinja template safety. These changes improve maintainability, prevent runtime errors, and ensure consistent rendering across browsers and environments.

Goals

Correct invalid CSS properties and remove redundant rules
Remove duplicate links in the tiles array
Improve HTML semantics for accessibility
Make sure links are correctly structured and render properly

Approach

Replaced background-color: none; with background-color: transparent;
Removed redundant display: inline-block in .tile and kept only display: flex
Updated tags to for semantic correctness
Removed duplicate links under the “AI” and “Integration Guides” tiles
Added descriptions to empty tags where necessary to improve accessibility
Verified CSS syntax and formatting throughout the file

User stories

As a developer, I want the documentation homepage to render correctly without runtime errors.

Release note

Bug fixes and improvements to the home page documentation snippet including CSS corrections, semantic HTML updates, and Jinja template.

Documentation

N/A

Training

N/A

Certification

N/A

Marketing

N/A

Automation tests

• Unit tests

  N/A

• Integration tests

  N/A

Security checks

• Followed secure coding standards in http://wso2.com/technical-reports/wso2-secure-engineering-guidelines? yes
• Ran FindSecurityBugs plugin and verified report? N/A
• Confirmed that this PR doesn't commit any keys, passwords, tokens, usernames, or other secrets? yes

Samples

N/A

Related PRs

N/A

Migrations (if applicable)

N/A

Test environment

JDK 17
Windows 11
Browsers: Chrome

Learning

Referenced Jinja2 template documentation for safe variable access

[CLAassistant]

All committers have signed the CLA.