Move cache-file-descriptors diectives into open files cache include file
Add a commented directive for reference
Add some commented gzip directives for reference
Add X-Frame-Options directive
Add X-Content-Type-Options directive
Add X-XSS-Protection directive
Add Content-Security-Policy directive
Add  commented timeouts directives for reference
Add fast cgi directives files
Update fastcgi params
Reomve the getting started file as not relevant anymore
Delete the TOC.md file as nto relevant anymore
Update the doc