add more details into HACK file
diff --git a/HACK b/HACK
index 33afc87..d9767c0 100644
--- a/HACK
+++ b/HACK
@@ -6,21 +6,22 @@
│ ├── ARM <- ARM code
│ ├── Mips <- Mips code
│ └── X86 <- X86
-├── bindings <- all bindings
+├── bindings <- all bindings are under this dir
│ ├── csharp <- C# bindings + test code
│ ├── java <- Java bindings + test code
│ ├── ocaml <- Ocaml bindings + test code
│ ├── python <- Python bindings + test code
│ └── ruby <- Ruby bindings + test code
-├── include <- API headers in C (*.h)
+├── include <- API headers in C (*.h)
├── release <- Precompiled binaries
-│ ├── linux
-│ ├── mac
-│ └── windows
+│ ├── linux <- .deb, .rpm, python packages, etc
+│ ├── mac <- .dmg
+│ └── windows <- .msi, .exe, .dll, etc
├── tests <- Test code (in C)
Follow COMPILE to see how to compile and run code.
+
Note: if you find some bugs during compilation, it is recommended to clean
the code and try again, for example with: