Add 1998/bas2/try.sh + format/typo check README.md

The try.sh allows one to pass in args: if a readable regular file it
will be fed to the program and otherwise it'll act as if it's a string.
It also has some additional commands that I thought might be fun to show
the entry.

Format/typo check README.md file.

1998/bas2/try.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+# 
+# try.sh - demonstrate 1998/bas2
+#
+# If any args are specified it checks if it's a readable file and if it is it
+# feeds it to the program. If not it assumes it's a string and feeds that to the
+# program.
+#
+
+make all || exit 1
+
+echo "$ ./bas2 < bas2.c" 1>&2
+./bas2 < bas2.c
+
+echo "$ ./bas2 < README.md" 1>&2
+./bas2 < README.md
+
+echo "$ ./bas2 < Makefile" 1>&2
+./bas2 < Makefile
+
+echo "$ echo foo bar baz | ./bas2" 1>&2
+echo foo bar baz | ./bas2
+
+echo "$ cat README.md Makefile bas2.c | ./bas2" 1>&2
+cat README.md Makefile bas2.c | ./bas2
+
+# while we have an arg check if it's a file. If it is a regular file that is
+# readable feed it to the program; otherwise act as if it's a string.
+while [[ "$#" -gt 0 ]]; do
+    if [[ -f "$1" && -r "$1" ]]; then
+	echo "$ ./bas2 < $1" 1>&2
+	./bas2 < "$1"
+    else
+	echo "$ echo $1 | ./bas2" 1>&2
+	echo "$1" | ./bas2
+    fi
+    shift 1
+done