Hanami contributors

All funk-yourself commits

Fix x_frame_options example in headhanami.github.io
Fix x_frame_options example in 1.0hanami.github.io
Fix version in head/projects/securityhanami.github.io
Copy security guide to headhanami.github.io
Mention default values of security optionshanami.github.io
Add security to navigationhanami.github.io
Create security.mdhanami.github.io