add M68K to all the docs
diff --git a/HACK.TXT b/HACK.TXT
index 44c8179..db373e2 100644
--- a/HACK.TXT
+++ b/HACK.TXT
@@ -5,6 +5,7 @@
 ├── arch            <- code handling disasm engine for each arch
 │   ├── AArch64     <- ARM64 (aka ARMv8) engine
 │   ├── ARM         <- ARM engine
+│   ├── M68K        <- M68K engine
 │   ├── Mips        <- Mips engine
 │   ├── PowerPC     <- PowerPC engine
 │   ├── Sparc       <- Sparc engine