Fix readme

Author: brendan-rius

README.md

@@ -1,7 +1,8 @@
 # JWT cracker
 
 A JWT brute-force cracker written in C.
-I used the Apple Base64 implementation that I modified slightly.
+
+I used the [Apple Base64 implementation](https://opensource.apple.com/source/QuickTimeStreamingServer/QuickTimeStreamingServer-452/CommonUtilitiesLib/base64.c) that I modified slightly.
 
 ## Compile
 
@@ -12,7 +13,7 @@ make
 ./jwtcrack eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiYWRtaW4iOnRydWV9.cAOIAifu3fykvhkHpbuhbvtH807-Z2rI1FS3vX1XMjE
 ```
 
-In the above example, the key is `secret`. It takes approximately 10 minutes to crack on my Macbook.
+In the above example, the key is `Sn1f`. It takes approximately 2 minutes to crack on my Macbook.
 
 ## Caveats