Spelling mistakes
Clarifications, additions, spelling mistakes, and fixes in existing guide
fix tabs
Add instructions for Apache
Add exercise explanation at the beginning
Fix indentation
https -> HTTPS
pem file is not necessary
Fix syntactical error
Fix typo spotted by @tech-no-crat
Merge branch 'second-exercise-fixes' of github.com:gtklocker/security-class into second-exercise-fixes
Redirect from HTTP to HTTPS in Apache
Add newer versions of TLS/SSL protocols; enable HSTS in apache
Sign apache conf files
Add screenshots with insecure content and untrusted certificate problems
Clarify that certificates are free at the beginning
Remove comment about EV certs that is unclear
Clarification that personal details during StartSSL registration should be correct and detailed for cert request to be approved
Clarification comment on client-side certs
Add links to apache conf sigs and comment for gpg sig verification