document python2 requirements for unicorn_mode
MODIFY
docs/unicorn_mode.txt
docs/unicorn_mode.txt
@@ -20,6 +20,8 @@ The idea and much of the implementation comes from Nathan Voss <njvoss299@gmail.
2) How to use
-------------
+Requirements: you need an installed python2 environment.
+
*** Building AFL's Unicorn Mode ***
First, make afl as usual.

MODIFY
unicorn_mode/README.md
unicorn_mode/README.md
afl-unicorn lets you fuzz any piece of binary that can be emulated by
[Unicorn Engine](http://www.unicorn-engine.org/).
+Requirements: Python2
+
For the full readme please see docs/unicorn_mode.txt
For an in-depth description of what this is, how to install it, and how to use

document python2 requirements for unicorn_mode