Add 2000/dhyang/try.sh, make void main int main

The try.sh script is as usual: replaces what the judges recommended one
try.

It was suggested to me a while back that when I encounter a void main
that I change it to int to be more portable so I have done that.

README.md file typo/format checked.

This should complete the review of 2000/dhyang.

2000/dhyang/try.sh

@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+#
+# try.sh - demonstrate IOCCC winner 2000/dhyang
+#
+
+# make sure CC is set so that when we do make CC="$CC" it isn't empty. Doing it
+# this way allows us to have the user specify a different compiler in an easy
+# way.
+if [[ -z "$CC" ]]; then
+    CC="cc"
+fi
+
+make CC="$CC" all >/dev/null || exit 1
+
+# clear screen after compilation so that only the entry is shown
+clear
+
+
+echo "$ make saitou >/dev/null" 1>&2
+make saitou >/dev/null
+
+echo "$ ./saitou > aku.c" 1>&2
+./saitou > aku.c
+
+echo "$ cat aku.c"
+cat aku.c
+
+echo "$ make soku >/dev/null" 1>&2
+make soku >/dev/null
+
+echo "$ ./soku > soku.c" 1>&2
+./soku > soku.c
+
+echo "$ cat soku.c" 1>&2
+cat soku.c
+
+echo "$ make zan >/dev/null" 1>&2
+make zan >/dev/null
+
+echo "$ ./zan > zan.c" 1>&2
+./zan > zan.c
+
+echo "$ cat zan.c" 1>&2
+cat zan.c
+
+echo "$ make aku >/dev/null" 1>&2
+make aku >/dev/null
+
+echo "$ ./aku | diff - aku.c" 1>&2
+./aku | diff - aku.c