Adjusted some tags to reflect the W3C standards

[gbengaoluwadahunsi]

Summary I made adjustments to the landing page to align with W3C standards. This included adding a doctype declaration, tag with a lang attribute, and removing the frameborder attribute from the iframe.

Motivation The motivation behind these changes was to ensure compliance with web standards and improve the overall quality and accessibility of the landing page. By adhering to W3C standards:

The page becomes more interoperable across different browsers and devices. It enhances accessibility for users with disabilities, ensuring they can access and navigate the content effectively. Following best practices promotes better SEO performance, potentially improving search engine rankings. Removal of deprecated attributes like frameborder in iframes ensures compatibility with modern web standards and future-proofing the codebase. Testing The changes have been thoroughly tested locally to ensure they render correctly in various browsers and devices. Additionally, I have validated the modifications using online HTML validation tools to confirm adherence to standards.

[gbengaoluwadahunsi]

I have fixed it, kindly review @birm