Documentation: Install Secret-Agent about secret-agent HOT 2 CLOSED

@GlenDC, you are welcome to install it globally -- and it works great when installed globally. However, there are a few reasons why our default recommendation is to install locally:

The foremost reason is that by adding it into your local package.json, you are able to lock the version number. This ensures that your local code won't break because another project is using a different version. Equally important this allows you to deploy to production with the assurance that your production version will be the same as your development. Relying on globally installed node packages does not allow this (so far as I know).

The good news is the majority of the package size is from downloading Chrome, and in this area we have optimized SecretAgent so that all your locally installed versions should share the same Chrome download. This means that once you install it in one project, the other nine should be relatively quick and small.

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That makes total sense. I guess the chrome version does depend also on your version of secret agent, so you might never the less need multiple chrome versions? I wonder if a small percept from this nice explanation of yours could be put in the linked documentation page, as it does help. It is however not that important that I you would want these 3 paragraphs there, I imagine. Either way, for me that does explain it nicely. Thank you for this :)

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