message: Add documentation for config $include
diff: @@ -141,16 +141,17 @@ itself:
  $file: ./my-secret.txt
  ```
  -### Data File Secrets
  +### Including Files
  -This reads secrets from a path within a JSON-like data file. The file path
  -behaves similar to file secrets, but with the addition of a url fragment that is
  -used to point to a specific value inside the file. Supported file extensions are
  -`.json`, `.yaml`, and `.yml`. For example, the following would read out
  -`my-secret-key` from `my-secrets.json`:
  +The `$include` keyword can be used to load in JSON data from an external file.
  +It's able to load and parse data from `.json`, `.yml`, and `.yaml` files. It's
  +also possible to include a url fragment (`#`) to point to a value at the given
  +path in the file.
  +
  +For example, the following would read `my-secret-key` from `my-secrets.json`:
  ```yaml
  -$data: ./my-secrets.json#deployment.key
  +$include: ./my-secrets.json#deployment.key
  ```
  Example `my-secrets.json` file:
  