wiki URL pointing problem

[Yaoisss]

url:https://trailofbits.github.io/ctf/vulnerabilities/source.html
Resources
Essential C - Programming in C primer ------->https://trailofbits.github.io/ctf/ctf/vulnerabilities/ctf/vulnerabilities/ctf/vulnerabilities/ctf/vulnerabilities/references/EssentialC.pdf
is 404
ture --->https://github.com/trailofbits/ctf/blob/master/vulnerabilities/references/EssentialC.pdf