* feat: added csp.html template to theme head element
* feat: added my name to CONTRIBUTORS
* fix: added conditional logic for templating to stabilize build
* feat: Added CSP section to example config.toml
* fix: updated template logic
* updated contributors to reference website and not github
* fix conflict with contributors, moved csp out of _shared dir
Co-authored-by: Luiz F. A. de Prá <luizdepra@users.noreply.github.com>