Fix AWS region for docker login command

[jalessio]

I think the docker login command should be targeting us-west-2 since that is the region where the ECR repo is located.

[netlify]

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[rhoboat]

I've got a PR to change this upstream. We'd have to re-pull the generated docs there (or from the for-production examples in the service-catalog repo). The reviewers on this repo will know best how to update these docs based on that generation process. (There might be other changes to the docs that we've made upstream.)

[eak12913]

@jalessio - Thanks for the submission. I'm going to close this PR in favor of #162 as the file you've changed (though a logical thing to change) is actually a generated file. We haven't done a great job yet with exposing an easy way to submit a change that gets properly built. Thank you for the contribution anyway!