chore(git): add missing file

Author: EisenbergEffect

build/tasks/doc.js

@@ -0,0 +1,14 @@
+var gulp = require('gulp');
+var tools = require('aurelia-tools');
+var paths = require('../paths');
+var yuidoc = require('gulp-yuidoc');
+
+gulp.task('doc-generate', function(){
+  return gulp.src(paths.source)
+    .pipe(yuidoc.parser(null, 'api.json'))
+    .pipe(gulp.dest(paths.doc));
+});
+
+gulp.task('doc', ['doc-generate'], function(){
+  tools.transformAPIModel(paths.doc);
+});