update jsdoc version from alpha5 to alpha9

The jsdoc 3.3.0-alpha5 can't correctly work out the doc of the annotation is /tests/Sidenav.js. And I can't update jsdoc from alpha5 to alpha9 by simply change the package.json, because alpha9 alse use [requizzle](https://www.npmjs.org/package/requizzle) to replace the `symlink` in alpha5 \([see this](https://github.com/jsdoc3/jsdoc/tree/v3.3.0-alpha5/node_modules)\). So I change the index.js to alse use requizzle to make new version of jsdoc work.