docs: refine README hero badges and subtitle styling (#728)

Revert badge rows to flat-square (for-the-badge rendered as
mismatched oversized blocks), convert the subtitle to a native
blockquote for GitHub's built-in muted-grey text styling, and
trim "The" from the tagline.

README.md

@@ -2,15 +2,17 @@
 
 <img src="Semantica Logo.png" alt="Semantica" width="420"/>
 
-### The Semantic Infrastructure for AI Decision Intelligence, Context & Knowledge Management
+### Semantic Infrastructure for AI Decision Intelligence, Context & Knowledge Management
 
-*Palantir-grade intelligence, unlocked. 100% open source. Zero black boxes. Zero vendor lock-in. Self-hosted, so your most confidential data never leaves your infrastructure. From startup to Fortune 500, without the seven-figure contract.*
+> Palantir-grade intelligence, unlocked: 100% open source, zero black boxes, zero vendor lock-in.
+>
+> Self-hosted, so your most confidential data never leaves your infrastructure. From startup to Fortune 500, without the seven-figure contract.
 
 **Open Source &nbsp;·&nbsp; Auditable &nbsp;·&nbsp; Governed &nbsp;·&nbsp; Explainable &nbsp;·&nbsp; Self-Hostable**
 
-[![GitHub Stars](https://img.shields.io/github/stars/semantica-agi/semantica?style=for-the-badge&color=FFD700&logo=github&logoColor=white&label=Stars)](https://github.com/semantica-agi/semantica) [![PyPI](https://img.shields.io/pypi/v/semantica.svg?style=for-the-badge&color=0066CC&logo=pypi&logoColor=white)](https://pypi.org/project/semantica/) [![Total Downloads](https://static.pepy.tech/badge/semantica?style=for-the-badge)](https://pepy.tech/project/semantica) [![Python 3.8+](https://img.shields.io/badge/python-3.8+-3776AB?style=for-the-badge&logo=python&logoColor=white)](https://www.python.org/) [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg?style=for-the-badge)](https://opensource.org/licenses/MIT) [![CI](https://img.shields.io/github/actions/workflow/status/semantica-agi/semantica/ci.yml?style=for-the-badge&label=CI)](https://github.com/semantica-agi/semantica/actions) [![Discord](https://img.shields.io/badge/Discord-Join%20Community-5865F2?style=for-the-badge&logo=discord&logoColor=white)](https://discord.gg/sV34vps5hH) [![Docs](https://img.shields.io/badge/Docs-docs.getsemantica.ai-0099FF?style=for-the-badge&logo=readthedocs&logoColor=white)](https://docs.getsemantica.ai/) [![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/semantica-agi/semantica)
+[![GitHub Stars](https://img.shields.io/github/stars/semantica-agi/semantica?style=flat-square&color=FFD700&logo=github&logoColor=white&label=Stars)](https://github.com/semantica-agi/semantica) [![PyPI](https://img.shields.io/pypi/v/semantica.svg?style=flat-square&color=0066CC&logo=pypi&logoColor=white)](https://pypi.org/project/semantica/) [![Total Downloads](https://static.pepy.tech/badge/semantica?style=flat-square)](https://pepy.tech/project/semantica) [![Python 3.8+](https://img.shields.io/badge/python-3.8+-3776AB?style=flat-square&logo=python&logoColor=white)](https://www.python.org/) [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg?style=flat-square)](https://opensource.org/licenses/MIT) [![CI](https://img.shields.io/github/actions/workflow/status/semantica-agi/semantica/ci.yml?style=flat-square&label=CI)](https://github.com/semantica-agi/semantica/actions) [![Discord](https://img.shields.io/badge/Discord-Join%20Community-5865F2?style=flat-square&logo=discord&logoColor=white)](https://discord.gg/sV34vps5hH) [![Docs](https://img.shields.io/badge/Docs-docs.getsemantica.ai-0099FF?style=flat-square&logo=readthedocs&logoColor=white)](https://docs.getsemantica.ai/) [![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/semantica-agi/semantica)
 
-[![Website](https://img.shields.io/badge/Website-getsemantica.ai-000000?style=for-the-badge&logo=googlechrome&logoColor=white)](https://getsemantica.ai/) [![Docs](https://img.shields.io/badge/Docs-docs.getsemantica.ai-0099FF?style=for-the-badge&logo=readthedocs&logoColor=white)](https://docs.getsemantica.ai/) [![Discord](https://img.shields.io/badge/Discord-Join%20Community-5865F2?style=for-the-badge&logo=discord&logoColor=white)](https://discord.gg/sV34vps5hH) [![Twitter/X](https://img.shields.io/badge/Follow-%40BuildSemantica-000000?style=for-the-badge&logo=x&logoColor=white)](https://x.com/BuildSemantica) [![YouTube](https://img.shields.io/badge/YouTube-Watch%20Demos-FF0000?style=for-the-badge&logo=youtube&logoColor=white)](https://www.youtube.com/watch?v=QfnNZg4-dZA) [![PyPI](https://img.shields.io/badge/PyPI-semantica-0066CC?style=for-the-badge&logo=pypi&logoColor=white)](https://pypi.org/project/semantica/) [![Changelog](https://img.shields.io/badge/Changelog-View-6E40C9?style=for-the-badge&logo=keepachangelog&logoColor=white)](CHANGELOG.md)
+[![Website](https://img.shields.io/badge/Website-getsemantica.ai-000000?style=flat-square&logo=googlechrome&logoColor=white)](https://getsemantica.ai/) [![Docs](https://img.shields.io/badge/Docs-docs.getsemantica.ai-0099FF?style=flat-square&logo=readthedocs&logoColor=white)](https://docs.getsemantica.ai/) [![Discord](https://img.shields.io/badge/Discord-Join%20Community-5865F2?style=flat-square&logo=discord&logoColor=white)](https://discord.gg/sV34vps5hH) [![Twitter/X](https://img.shields.io/badge/Follow-%40BuildSemantica-000000?style=flat-square&logo=x&logoColor=white)](https://x.com/BuildSemantica) [![YouTube](https://img.shields.io/badge/YouTube-Watch%20Demos-FF0000?style=flat-square&logo=youtube&logoColor=white)](https://www.youtube.com/watch?v=QfnNZg4-dZA) [![PyPI](https://img.shields.io/badge/PyPI-semantica-0066CC?style=flat-square&logo=pypi&logoColor=white)](https://pypi.org/project/semantica/) [![Changelog](https://img.shields.io/badge/Changelog-View-6E40C9?style=flat-square&logo=keepachangelog&logoColor=white)](CHANGELOG.md)
 
 </div>