[Hub] Documentation for "MANUAL" setup requires update.

[JedMeister]

It seems that AWS have changed things within the IAMs Policy and Role areas (again...)

As such the documentation when signing up to the Hub needs to be updated. These points need changing:

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Step 1: Create the "turnkeyhub-policy" IAM policy

C) Select the JSON tab and remove the pre-filled content, and copy/paste the below policy:

D) Click "Review policy" (blue button bottom right)

E) Input relevant name (i.e. either 'turnkeyhub-policy' or 'turnkeyhub-backup-policy') in the "Name" and add a description if desired and click "Create policy".

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Step 2: Create the "turnkeyhub" IAM role with the above policy

A) In the IAM roles tab select "Create Role".

B) Under "Select type of trusted entity", select "Another AWS account". Enter the Account ID into the relevant box. Click the "Require external ID (Best practice when a third party will assume this role)" checkbox and enter the External ID into the relevant box. Click the "Next: Permissions" button (bottom right; will be greyed out as per screenshot until you enter the Account ID and External ID).

C) Attach the previously created "turnkeyhub-policy" policy to the newly created "turnkeyhub" role, then click "Next: Tags" button (bottom right), then "Next: Review".

[current screenshot is still relevant]

D) Enter "turnkeyhub" in the Name box. You may also enter a description if you wish (optional). Click "Create".

E) Either find the new role within the list (either by eye, or search for it) and click on it; or if you've used the default name ('turnkeyhub'), use this link.

F) In the Summary info for your role, near the top next to "Role ARN" copy the full ARN (e.g. should look something like arn:aws:iam::123456789012:role/turnkeyhub) and paste into the box below.