[Minor] Fixed typo

gulpfile.js

@@ -20,7 +20,7 @@ var pkg = require('./package.json');
  */
 var project = pkg.name; // Project slug
 var cssOutputStyle = 'expanded'; // Values: compact, compressed, nested, expanded
-var cssOutputCoumments = false; // Output SASS source/line numbers in compiled CSS files
+var cssOutputComments  = false; // Output SASS source/line numbers in compiled CSS files
 
 var styleSourcePath = './src/scss/'; // Path to source SASS files
 var jsSourcePath = './src/js/'; // Path to source JavaScript files
@@ -139,7 +139,7 @@ styleTasks.forEach( function( task ) {
  gulp.src( styleSourcePath + task.source )
  .pipe( sourcemaps.init() )
  .pipe( sass( {
- sourceComments: cssOutputCoumments ? 'map' : null,
+ sourceComments: cssOutputComments ? 'map' : null,
  errLogToConsole: true,
  outputStyle: cssOutputStyle,
  precision: 10