Add demo video to homepage and readme

Author: crmne

README.md

@@ -9,10 +9,10 @@
 
 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) — *Your AI coworker*
 
-[![Gem Version](https://badge.fury.io/rb/ruby_llm.svg?a=10)](https://badge.fury.io/rb/ruby_llm)
+[![Gem Version](https://badge.fury.io/rb/ruby_llm.svg)](https://badge.fury.io/rb/ruby_llm)
 [![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)
+[![codecov](https://codecov.io/gh/crmne/ruby_llm/branch/main/graph/badge.svg)](https://codecov.io/gh/crmne/ruby_llm)
 
 <a href="https://trendshift.io/repositories/13640" target="_blank"><img src="https://trendshift.io/api/badge/repositories/13640" alt="crmne%2Fruby_llm | Trendshift" style="width: 250px; height: 55px;" width="250" height="55"/></a>
 </div>
@@ -24,6 +24,10 @@ Battle tested at [<picture><source media="(prefers-color-scheme: dark)" srcset="
 
 Build chatbots, AI agents, RAG applications. Works with OpenAI, xAI, Anthropic, Google, AWS, local models, and any OpenAI-compatible API.
 
+## From zero to AI chat app in under two minutes
+
+https://github.com/user-attachments/assets/65422091-9338-47da-a303-92b918bd1345
+
 ## Why RubyLLM?
 
 Every AI provider ships their own bloated client. Different APIs. Different response formats. Different conventions. It's exhausting.

docs/index.md

@@ -25,6 +25,12 @@ redirect_from:
 <a href="{% link _getting_started/getting-started.md %}" class="btn btn-primary fs-5 mb-4 mb-md-0 mr-2" style="margin: 0;">Get started</a>
 <a href="https://github.com/crmne/ruby_llm" class="btn fs-5 mb-4 mb-md-0 mr-2" style="margin: 0;">GitHub</a>
 
+## From zero to AI chat app in under two minutes
+
+<video autoplay muted loop playsinline style="width: 100%; border-radius: 8px;">
+  <source src="https://talks.paolino.me/rucoco-2026/demo.mp4" type="video/mp4">
+</video>
+
 ---
 
 <div class="provider-icons">