message: docs: update policy doc
diff: @@ -386,7 +386,7 @@ The fourth cache behaviour handles next API requests `api/*`.
  | nextConfigDir | `string` | `./` | Directory where your application `next.config.js` file is. This input is useful when the `serverless.yml` is not in the same directory as the next app. <br>**Note:** `nextConfigDir` should be set if `next.config.js` `distDir` is used |
  | nextStaticDir | `string` | `./` | If your `static` or `public` directory is not a direct child of `nextConfigDir` this is needed |
  | description | `string` | `*lambda-type*@Edge for Next CloudFront distribution` | The description that will be used for both lambdas. Note that "(API)" will be appended to the API lambda description. |
  -| policy | `string` | `arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole` | The arn policy that will be assigned to both lambdas. |
  +| policy | `string\|object` | `arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole` | The arn or inline policy that will be assigned to both lambdas. |
  | runtime | `string\|object` | `nodejs12.x` | When assigned a value, both the default and api lambdas will be assigned the runtime defined in the value. When assigned to an object, values for the default and api lambdas can be separately defined | |
  | memory | `number\|object` | `512` | When assigned a number, both the default and api lambdas will be assigned memory of that value. When assigned to an object, values for the default and api lambdas can be separately defined | |
  | timeout | `number\|object` | `10` | Same as above |
  