Update README.md

Update with additional details about use of third-party data

## License Disclaimer for Third-Party Data
Note that while the code from this package is licensed under the MIT license, the pre-built databases use data from data providers that may have restrictions for particular use cases:

- The Australian databases are built from the [Geocoded National Address File](https://https://data.gov.au/data/dataset/geocoded-national-address-file-g-naf) with conditions of use based on the [End User License Agreemment](https://data.gov.au/dataset/ds-dga-e1a365fc-52f5-4798-8f0c-ed1d33d43b6d/distribution/dist-dga-0102be65-3781-42d9-9458-fdaf7170efed/details?q=previous%20gnaf)
- The US databases are still work-in-progress but are based on data from [OpenAddresses](https://openaddresses.io/) and so any work with whereabouts based on US address data should adhere to the [OpenAddresses license](https://github.com/openaddresses/openaddresses/blob/master/LICENSE).

Users of this software must comply with the terms and conditions of the respective data licenses, which may impose additional restrictions or requirements. By using this software, you agree to comply with the relevant licenses for any third-party data.

README.md

@@ -13,13 +13,13 @@ is available at [whereabouts](https://github.com/ajl2718/whereabouts) and can be
 pip install whereabouts
 ```
 
-## Important note about licenses
-Note that while the code from this package is licensed under the MIT license, the pre-built databases use data from data providers 
-that may have restrictions for particular use cases:
+## License Disclaimer for Third-Party Data
+Note that while the code from this package is licensed under the MIT license, the pre-built databases use data from data providers that may have restrictions for particular use cases:
+
 - The Australian databases are built from the [Geocoded National Address File](https://https://data.gov.au/data/dataset/geocoded-national-address-file-g-naf) with conditions of use based on the [End User License Agreemment](https://data.gov.au/dataset/ds-dga-e1a365fc-52f5-4798-8f0c-ed1d33d43b6d/distribution/dist-dga-0102be65-3781-42d9-9458-fdaf7170efed/details?q=previous%20gnaf)
 - The US databases are still work-in-progress but are based on data from [OpenAddresses](https://openaddresses.io/) and so any work with whereabouts based on US address data should adhere to the [OpenAddresses license](https://github.com/openaddresses/openaddresses/blob/master/LICENSE).
 
-Please ensure that you are adhering to these licenses in your applications.
+Users of this software must comply with the terms and conditions of the respective data licenses, which may impose additional restrictions or requirements. By using this software, you agree to comply with the relevant licenses for any third-party data.
 
 ## Installation of reference databases
 Once the package is installed you will need to install a geocoding database, which has been built from a country's or region's address data.