Kali Update

To update Kali, first ensure that /etc/apt/sources.list is properly populated:
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deb http://kali.cs.nctu.edu.tw/kali kali-rolling main non-free contrib
#deb-src http://http.kali.org/kali kali-rolling main contrib non-free


# See https://www.kali.org/docs/general-use/kali-linux-sources-list-repositories/
deb http://http.kali.org/kali kali-rolling main contrib non-free non-free-firmware

# Additional line for source packages
# deb-src http://http.kali.org/kali kali-rolling main contrib non-free non-free-firmware