Update Ruby Style Guide badge to point to RuboCop

Author: crmne

README.md

@@ -10,7 +10,7 @@
 Battle tested at [<picture><source media="(prefers-color-scheme: dark)" srcset="https://chatwithwork.com/logotype-dark.svg"><img src="https://chatwithwork.com/logotype.svg" alt="Chat with Work" height="30" align="absmiddle"></picture>](https://chatwithwork.com) — *Claude Code for your documents*
 
 [![Gem Version](https://badge.fury.io/rb/ruby_llm.svg?a=10)](https://badge.fury.io/rb/ruby_llm)
-[![Ruby Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg)](https://github.com/testdouble/standard)
+[![Ruby Style Guide](https://img.shields.io/badge/code_style-rubocop-brightgreen.svg)](https://github.com/rubocop/rubocop)
 [![Gem Downloads](https://img.shields.io/gem/dt/ruby_llm)](https://rubygems.org/gems/ruby_llm)
 [![codecov](https://codecov.io/gh/crmne/ruby_llm/branch/main/graph/badge.svg?a=2)](https://codecov.io/gh/crmne/ruby_llm)
 

docs/index.md

@@ -71,7 +71,7 @@ permalink: /
 
 <div class="badge-container">
   <a href="https://badge.fury.io/rb/ruby_llm"><img src="https://badge.fury.io/rb/ruby_llm.svg" alt="Gem Version" /></a>
-  <a href="https://github.com/testdouble/standard"><img src="https://img.shields.io/badge/code_style-standard-brightgreen.svg" alt="Ruby Style Guide" /></a>
+  <a href="https://github.com/rubocop/rubocop"><img src="https://img.shields.io/badge/code_style-rubocop-brightgreen.svg" alt="Ruby Style Guide" /></a>
   <a href="https://rubygems.org/gems/ruby_llm"><img alt="Gem Downloads" src="https://img.shields.io/gem/dt/ruby_llm"></a>
   <a href="https://codecov.io/gh/crmne/ruby_llm"><img src="https://codecov.io/gh/crmne/ruby_llm/branch/main/graph/badge.svg" alt="codecov" /></a>
 </div>