adding default task behavior

tasks/cml.js

@@ -1,3 +1,36 @@
 var cml_html_converter = require('cml-html-converter');
 var result = cml_html_converter('line1\n\tline2');
 console.log(result);
+grunt.registerMultiTask('cml_html_converter', 'Grunt task for converting CML to HTML', function() {
+	// Merge task-specific and/or target-specific options with these defaults.
+	var options = this.options({
+		punctuation: '.',
+		separator: ', '
+	});
+
+	// Iterate over all specified file groups.
+	this.files.forEach(function(f) {
+		// Concat specified files.
+		var src = f.src.filter(function(filepath) {
+			// Warn on and remove invalid source files (if nonull was set).
+			if (!grunt.file.exists(filepath)) {
+				grunt.log.warn('Source file "' + filepath + '" not found.');
+				return false;
+				} else {
+				return true;
+			}
+		}).map(function(filepath) {
+			// Read file source.
+			return grunt.file.read(filepath);
+		}).join(grunt.util.normalizelf(options.separator));
+
+		// Handle options.
+		src += options.punctuation;
+
+		// Write the destination file.
+		grunt.file.write(f.dest, src);
+
+		// Print a success message.
+		grunt.log.writeln('File "' + f.dest + '" created.');
+	});
+});