Sync with c6e36ab
Sync with c6e36ab

Synced with dart-lang/site-webdev master branch, commit c6e36ab:
https://github.com/dart-lang/site-webdev/tree/c6e36abc78469d9d8d7af73849fcfe29572bc0f2/examples/ng/doc/quickstart

googlearchive/quickstart,angular-examples/quickstart,angular-examples/quickstart,googlearchive/quickstart