feat: add GitHub repository link to footer

- Add centered GitHub link above copyright line
- Include GitHub icon using iconify-icon
- Link points to https://github.com/juanatsap/cv-site
- Bilingual support: 'View this project on GitHub' / 'Ver este proyecto en GitHub'
- Styled with accent blue color and inline-flex for icon alignment

templates/index.html

@@ -240,6 +240,12 @@
 
     <!-- Footer (hidden in print) -->
     <footer class="no-print">
+        <p style="text-align: center; margin-bottom: 0.5rem;">
+            <a href="https://github.com/juanatsap/cv-site" target="_blank" rel="noopener noreferrer" style="color: var(--accent-blue); text-decoration: none; display: inline-flex; align-items: center; gap: 0.5rem;">
+                <iconify-icon icon="mdi:github" width="20" height="20"></iconify-icon>
+                {{if eq .Lang "es"}}Ver este proyecto en GitHub{{else}}View this project on GitHub{{end}}
+            </a>
+        </p>
         <p>© {{.CV.Meta.LastUpdated}} {{.CV.Personal.Name}} |
         {{if eq .Lang "es"}}Última actualización{{else}}Last updated{{end}}: {{.CV.Meta.LastUpdated}}</p>
     </footer>