Documention of Keystone assembler engine.

• How to compile & install Keystone from source.

  COMPILE.md

• How to compile & install Keystone from packages.

  http://keystone-engine.org/docs/

• Tutorial on programming with C & Python languages.

  http://keystone-engine.org/docs/tutorial.html

• Compare Keystone & LLVM.

  http://keystone-engine.org/docs/beyond_qemu.html