feat(docs): add compliance badge, update language list and references

Add custom DevRail compliance badge SVG and badge documentation page.
Update supported languages list from 4 to 7 (add ruby, go, javascript).
Add badge and agents links to getting-started index. Update contributing
cross-references from contributing-a-language.md to contributing.md.

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

Author: matthew-on-git

README.md

@@ -37,7 +37,7 @@ This site uses Hugo with the [Docsy](https://www.docsy.dev/) theme via Go module
 
 See [DEVELOPMENT.md](DEVELOPMENT.md) for development standards and contribution guidelines.
 
-To add a new language ecosystem to DevRail, see the [Contributing a New Language Ecosystem](../standards/contributing-a-language.md) guide.
+To add a new language ecosystem to DevRail, see the [Contributing to DevRail](../standards/contributing.md) guide.
 
 ## License
 

content/docs/contributing/adding-a-language.md

@@ -8,7 +8,7 @@ description: "Step-by-step guide for adding a new language ecosystem to DevRail.
 Adding a new language to DevRail involves changes across multiple repositories. This guide walks through the complete process.
 
 {{% alert title="Canonical Reference" color="info" %}}
-The authoritative, detailed version of this guide with full code templates and concrete examples lives in the `devrail-standards` repo at [`standards/contributing-a-language.md`](https://github.com/devrail-dev/devrail-standards/blob/main/standards/contributing-a-language.md). This page provides the overview; the canonical guide provides copy-pasteable templates for every step.
+The authoritative, detailed version of this guide with full code templates and concrete examples lives in the `devrail-standards` repo at [`standards/contributing.md`](https://github.com/devrail-dev/devrail-standards/blob/main/standards/contributing.md). This page provides the overview; the canonical guide provides copy-pasteable templates for every step.
 {{% /alert %}}
 
 ## Overview

content/docs/getting-started/_index.md

@@ -24,6 +24,7 @@ All other tools (linters, formatters, security scanners, test runners) are pre-i
 - **[New Project](/docs/getting-started/new-project/)** -- Start a new repository from a DevRail template. All configuration files are pre-set.
 - **[Retrofit Existing Project](/docs/getting-started/retrofit/)** -- Add DevRail standards to a repository you already have.
 - **[Working with AI Agents](/docs/getting-started/agents/)** -- Get AI coding agents to follow DevRail standards in your projects.
+- **[Compliance Badge](/docs/getting-started/badge/)** -- Add a DevRail compliance badge to your README.
 
 ## Verify Your Setup
 

content/docs/getting-started/badge.md

@@ -0,0 +1,38 @@
+---
+title: "Compliance Badge"
+linkTitle: "Badge"
+weight: 40
+description: "Add a DevRail compliance badge to your project README."
+---
+
+Show that your project follows DevRail standards by adding a compliance badge to your README.
+
+## Custom Badge (Hosted)
+
+```markdown
+[![DevRail compliant](https://devrail.dev/images/badge.svg)](https://devrail.dev)
+```
+
+**Preview:**
+
+[![DevRail compliant](/images/badge.svg)](https://devrail.dev)
+
+## Shields.io Badge (Alternative)
+
+If you prefer shields.io hosted badges:
+
+```markdown
+[![DevRail](https://img.shields.io/badge/DevRail-compliant-0969da)](https://devrail.dev)
+```
+
+## Where to Place It
+
+Add the badge near the top of your `README.md`, alongside other project badges (CI status, license, version):
+
+```markdown
+# My Project
+
+[![CI](https://github.com/OWNER/REPO/actions/workflows/lint.yml/badge.svg)](...)
+[![DevRail compliant](https://devrail.dev/images/badge.svg)](https://devrail.dev)
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](LICENSE)
+```

content/docs/getting-started/new-project.md

@@ -35,7 +35,7 @@ fail_fast: false
 log_format: json
 ```
 
-Supported languages: `python`, `bash`, `terraform`, `ansible`. List only the languages your project actually uses.
+Supported languages: `python`, `bash`, `terraform`, `ansible`, `ruby`, `go`, `javascript`. List only the languages your project actually uses.
 
 ### Step 3: Install Pre-Commit Hooks