Update IR documentation of algorithms kiwi-josh#9

README.md

@@ -4,7 +4,7 @@
 
 v0.0.4 - A small, zero dependency Javascript NZ bank account validation library that runs everywhere.
 
-It is based on the [documentation](https://web.archive.org/web/20181009211542/https://www.ird.govt.nz/resources/9/d/9d739cde-ad76-4c49-ae08-522c62d94dd6/rwt-nrwt-spec-2016.pdf) provided by the Inland Revenue Department.
+It is based on the [documentation](https://www.ird.govt.nz/-/media/project/ir/home/documents/digital-service-providers/software-providers/payroll-calculations-business-rules-specifications/payroll-calculations-and-business-rules-specification-2024-v1-1.pdf?modified=20230208203603&modified=20230208203603) provided by the Inland Revenue Department.
 This library is not however affiliated with or endorsed by the IRD.
 
 
@@ -96,4 +96,4 @@ This project is licensed under the MIT License - see the [LICENSE.md](LICENSE.md
 
 ## References
 
-* [IRD - Validating Bank Account Numbers](https://web.archive.org/web/20181009211542/https://www.ird.govt.nz/resources/9/d/9d739cde-ad76-4c49-ae08-522c62d94dd6/rwt-nrwt-spec-2016.pdf)
+* [IRD - Validating Bank Account Numbers](https://www.ird.govt.nz/-/media/project/ir/home/documents/digital-service-providers/software-providers/payroll-calculations-business-rules-specifications/payroll-calculations-and-business-rules-specification-2024-v1-1.pdf?modified=20230208203603&modified=20230208203603)