docs: center-align badge row and tagline in README

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: jakeefr

README.md

@@ -4,6 +4,8 @@
 
 ![PRISM demo](https://raw.githubusercontent.com/jakeefr/prism/main/demo.gif)
 
+<p align="center">
+
 [![PyPI version](https://img.shields.io/pypi/v/prism-cc?cache=1)](https://pypi.org/project/prism-cc/)
 [![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](LICENSE)
 [![Python 3.11+](https://img.shields.io/badge/python-3.11+-blue.svg)](https://www.python.org/)
@@ -12,7 +14,11 @@
 [![Claude Code Plugin](https://img.shields.io/badge/Claude%20Code-Plugin-orange.svg)](https://github.com/jakeefr/prism)
 [![Zero dependencies](https://img.shields.io/badge/external%20deps-4-brightgreen.svg)](pyproject.toml)
 
-**Session intelligence for Claude Code. Find out why your sessions are burning tokens, and fix them.**
+</p>
+
+<p align="center">
+<b>Session intelligence for Claude Code. Find out why your sessions are burning tokens, and fix them.</b>
+</p>
 
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