AWS res medium security documentation change
Summary
Updated deployment instructions: Changed stack template reference from GitHub to ZIP file, removed capital letter restriction in EnvironmentName, modified post-deployment steps to require password resets through AWS Directory Service, and added user synchronization details
Security assessment
The change enforces password resets for demo users through AWS Directory Service rather than temporary passwords, which improves security by preventing default credential usage. The added user synchronization guidance addresses potential access delays that could lead to security misconfigurations.