Location of bower_components directory in AngularJS phone tutorial

I'm actually enjoying the Angular JS tutorial: http://docs.angularjs.org/tutorial

However, I have a sneaking suspicion that the bower_components directory should be located on the same level as the app directory (not inside of it).

christohersmbp2:angular-phonecat christopherspears$ ll | awk '{print $9}'

LICENSE

README.md

app/

bower.json

bower_components/ <- moved it here

node_modules/

npm-debug.log

package.json

scripts/

test/

Am I wrong?