Graudit: Version 3.4

            Fixed a path issue in misc/taintfind.sh
            Changed installation instructions for better usage
            Added link to tutorial video in documentation
            Updated PHP rules
            Updated dotnet rules
            Updated xss rules
            Updated secrets rules
            Added support for setting default arguments via env vars
            Added test cases for environment variables
            Fixed a bug in database listing function
            Updated misc/phptaint.sh