docs(readme): update ng --help to ng help in readme

[kevcha]

As you can see above, ng --help doesn't work, we have to use ng help instead, and the command specified in the readme is the wrong one

Fix #3168

[googlebot]

We found a Contributor License Agreement for you (the sender of this pull request), but were unable to find agreements for the commit author(s). If you authored these, maybe you used a different email address in the git commits than was used to sign the CLA (login here to double check)? If these were authored by someone else, then they will need to sign a CLA as well, and confirm that they're okay with these being contributed to Google.

[Meligy]

Can you please look at the CLA problem in the above comment #3159 (comment) ?

Thanks a lot.

Cheers,

[googlebot]

CLAs look good, thanks!

[kevcha]

Done ! Should I rebase it to master ?

[Meligy]

That would be nice of you, although possibly not mandatory. Usually the project team merge PRs that are in sync with master, or (apparently) cherry pick commits if the PR is not up date with master.

[kevcha]

Done, just hoping that there won't by new commits in master for CI build time :)
Otherwise I'll let the project team cherry-pick the commit !
Thks :)

[filipesilva]

I closed the dupes (thanks @grizzm0!) and we'll get this one merged soon. Thanks all!

[neo]

They generated README.md file should be changed too: #3286 @filipesilva @Meligy

[neo]

@kevcha Like here: https://github.com/angular/angular-cli/pull/3286/files#diff-47671671e7f3a5bbd35326f4efc1b03eR31

[kevcha]

Ah ok, sorry I didn't see that.
So, maybe we can close this PR since #3352 has been merged ?

[grizzm0]

It has not been merged.

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