Update README.md

[simonbs]

Elaborates Shape Weekend section.

Description

Rephrases Shape Weekend section to mention that we're now Framna.

Motivation and Context

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

[Copilot]

Pull Request Overview

This PR updates the README to reflect the company's rebranding from Shape to Framna by rephrasing the Shape Weekend section.

• Rephrased the event description for clarity
• Updated references to the old company name

Comments suppressed due to low confidence (1)

README.md:85

• Consider clarifying whether the event name should also be updated to align with the new branding. If the event name is changing, updating 'Shape Weekend' to 'Framna Weekend' would improve consistency.

Before we became Framna, our company was known as Shape. Every year, we held "Shape Weekend", a three-day hackathon where all employees came together to build exciting new products. In 2023, one of those teams, passionate about documentation and spec-driven development, built Framna Docs. We have used it daily ever since.