Updated disable deploy docs

[patocallaghan]

When I tried to use this config to disable the addon-docs deployment plugins I got the following warning in my terminal.

Your config has referenced the following unknown plugins or aliases in `config.pipeline.disabled`:

- addon-docs

It appears that simply using addon-docs is not a valid alias for disabling the ember-cli-addon-docs deployment plugins.

In the below screenshot if I put a breakpoint inside the ember-cli-deploy code you can see the alias that appears.

I'm imagining ember-cli-deploy-git and ember-cli-deploy-git-ci appear as git and git-ci as the ember-cli-deploy- gets snipped.

[samselikoff]

Thanks!

[allenz-crypto]

@patocallaghan @samselikoff Using "ember-cli-addon-docs": true doesn't disable the plugin. Perhaps something changed since OP? But I was only able to disable the plugin with "addon-docs": true