Gunicorn needs to be run whilist in the folder for context, folder path is not enough
Correct static path, note to check nginx user
Capitalization of services and small typos
Service examples updated to their latest versions and download links
Expanded /var/www chowns for Nginx and Apache examples
Add in a troubleshooting note for no images being displayed (permissions issue) and gunicorn not execting (file path context)
Correct formatting. Reword a few parts. Remove "new in 1.15".
