Assemble only rebuilds new files now.

If you edit a single file and run, only this single file will be assembled

Gruntfile.js

@@ -20,7 +20,7 @@ module.exports = function(grunt) {
 		'watch': {
 		  css: {
 		    files: 'src/**/*.*',
-		    tasks: ['sync','assemble'],
+		    tasks: ['sync','newer:assemble'],
 		    options: {
 		      livereload: true,
 		    },
@@ -91,11 +91,12 @@ module.exports = function(grunt) {
     grunt.loadNpmTasks('grunt-livereload');
     grunt.loadNpmTasks('grunt-git');
     grunt.loadNpmTasks('assemble');
+    grunt.loadNpmTasks('grunt-newer');
 
     grunt.registerTask('default', [
         'clean', // clean out any deleted files
         'sync',  // copy documentation to src, copy resources from src to output
-        'assemble',  // build pages
+        'newer:assemble',  // build pages
         'open',
         'http-server',  // start server
         'watch'

helper-gfm.js

@@ -4,7 +4,7 @@ module.exports.register = function (Handlebars, x)  {
   Handlebars.registerHelper('gfm', function (options)  { 
   	var marked = require('./marked-config');
     return new Handlebars.SafeString(
-      '<div class="mybold">'
+      '<div>'
       + marked(options.fn(this))
       + '</div>');
   });

package.json

@@ -11,10 +11,11 @@
     "grunt-contrib-copy": "^0.7.0",
     "grunt-contrib-watch": "^0.6.1",
     "grunt-git": "^0.3.4",
-    "grunt-open": "^0.2.3",
-    "grunt-text-replace": "^0.4.0",
     "grunt-http-server": "^1.2.0",
     "grunt-livereload": "^0.1.3",
+    "grunt-newer": "^1.1.0",
+    "grunt-open": "^0.2.3",
+    "grunt-text-replace": "^0.4.0",
     "http-server": "^0.8.0"
   }
 }