wops, wrong version number! (master, tags/1.1)
while here also add a license and mention the copyright on Makefile. It's now very different from the mandoc-portable one, but that was the base for this one (including how to `make dist').
reminded by N-R-K on GitHub (issue #1).
see GitHub issue #1.
avoid a possible warning by the compiler, reported by N-R-K on GitHub issue #1.
copies the binary to ~/bin