medusa: move to common, update link (#12658)

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

pages/linux/medusa.md → pages/common/medusa.md

@@ -1,7 +1,7 @@
 # Medusa
 
 > A modular and parallel login brute-forcer for a variety of protocols.
-> More information: <https://manned.org/medusa>.
+> More information: <https://jmk-foofus.github.io/medusa/medusa.html>.
 
 - Execute brute force against an FTP server using a file containing usernames and a file containing passwords: