Add note on when not to use GOV.UK Vue

Author: matteason

content/1.get-started/10.installing-govuk-vue.md

@@ -4,6 +4,9 @@
 
 GOV.UK Vue is compatible with Vue 3.4.38 and up and GOV.UK Frontend 5.1.0 and up. Some components require higher versions of GOV.UK Frontend.
 
+GOV.UK Vue (or any JavaScript library) might not be suitable for your project if it's a standard transactional government service.
+Make sure you read the [guidance on progressive enhancement](https://www.gov.uk/service-manual/technology/using-progressive-enhancement) and [building more complex services](https://www.gov.uk/service-manual/technology/using-progressive-enhancement#building-more-complex-services) before starting. GOV.UK Vue is designed to be used in more complex services, like interactive mapping, or internal tools where you've determined that JavaScript is acceptable.
+
 You'll need a Vue project to add GOV.UK Vue to. The easiest way to create a Vue project is using
 [create-vue](https://github.com/vuejs/create-vue).
 

content/3.support/index.md

@@ -17,8 +17,6 @@ Contact me directly if you need help or you want to request a feature:
 
 Even if you don't have any issues, I'd love to hear how you're using GOV.UK Vue.
 
-
-
 ## Sponsoring GOV.UK Vue
 If you find this project useful, I'd really appreciate your support through [Ko-fi](https://ko-fi.com/matteason) or
 [GitHub Sponsors](https://github.com/sponsors/govuk-vue).