Fixes documentation error found in: https://github.com/dart-lang/angular2/issues/247
Fixes documentation error found in:
https://github.com/dart-lang/angular2/issues/247

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=144141625

chalin/angular2,angulardart/angular,angulardart/angular,kevmoo/angular,chalin/angular2,matanlurey/angular,matanlurey/angular,kevmoo/angular,matanlurey/angular,chalin/angular2,angulardart/angular,kevmoo/angular