ledger readme

wbs_aes_ledger/README.md

@@ -2,6 +2,7 @@
 
 This white-box was proposed during Ledger CTF 2018 first stage (Challenge 2: Access control).
 Ref: https://www.ledger.fr/ctf2018/ https://drive.google.com/open?id=1UPLe3V5Jt3SMqZe4ZIFcnWydSqUyI4Ao
+Sources were made available after the challenge.
 
 Components
 ----------
@@ -11,4 +12,5 @@ Components
 Other write-ups
 ---------------
 
-The challenge is still running...
+* https://github.com/LedgerHQ/CTF/blob/master/ctf2018/CTF2/ctf2_b0n0n.py
+* https://github.com/LedgerHQ/CTF/blob/master/ctf2018/CTF2/ctf2_GeorgesGanerot/write_up.txt