Add info about fork

README.md

@@ -4,3 +4,18 @@
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/e45137d7095f4a0ab5ef53f7f7751269)](https://www.codacy.com/app/dukelsky/huskylib?utm_source=github.com&utm_medium=referral&utm_content=huskyproject/huskylib&utm_campaign=Badge_Grade)
 
 **huskylib** is a support library of Husky project, containing essential project functionality
+
+This fork allows cross-compilation from Linux to Windows NT & OS/2 using Open Watcom 2.0:
+```console
+$ git clone https://github.com/zoomosis/huskylib
+$ cd huskylib/make
+```
+Windows NT build:
+```console
+$ gmake -f makefile.watcom NT=1
+```
+OS/2 build:
+```console
+$ gmake -f makefile.watcom OS2=1
+```
+Where 'gmake' is GNU Make.