feat: add best-practices

Signed-off-by: Oliver Bähler <oliverbaehler@hotmail.com>

Author: oliverbaehler

content/en/_index.md

@@ -4,6 +4,8 @@ title: Project Capsule
 
 {{< blocks/cover title="Capsule" image_anchor="top" height="full" >}}
 # A multi-tenancy and policy-based framework for Kubernetes { class="text-center" }
+
+### Developed in 🇮🇹 / 🇨🇭 / 🇧🇬 { class="text-center mb-4" }
 <div class="mt-5 mx-auto">
 <a class="btn btn-lg btn-primary me-3 mb-4" href="/docs/overview">
   Learn More <i class="fas fa-arrow-alt-circle-right ms-2"></i>