Summary: env zero adds ready-to-use policies

Why It Matters: This change makes it easier for users to set up security and cost rules. It helps them enforce standards quickly without writing new code.

What Changed:

• A new blog post about "Ready-to-Use Policies – Guardrails You Can Activate Instantly" was added.
• The new content explains that env zero now offers prebuilt guardrails for secure, compliant, and cost-efficient environments.
• It highlights examples like blocking public S3 buckets and limiting costly EC2 instances.