moved what is cue page to Learn section

Signed-off-by: Richard Jones <richard@dagger.io>

docs/introduction/1002-vs.md

@@ -1,5 +1,5 @@
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-sidebar_position: 3
+sidebar_position: 2
 slug: /1002/vs/
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docs/learn/1003-get-started.md

@@ -6,7 +6,7 @@ slug: /1003/get-started/
 
 In this tutorial, you will learn the basics of Dagger by building a Dagger project from scratch. This simple project deploys a [React](https://reactjs.org/) application to your local machine via Docker. In later tutorials, you will learn how to configure Dagger to deploy to remote infrastructure such as EKS and GKE.
 
-This tutorial does involve writing CUE, so if you haven’t already, be sure to read [What is CUE?](../introduction/1005-what_is_cue.md)
+This tutorial does involve writing CUE, so if you haven’t already, be sure to read [What is CUE?](./1005-what_is_cue.md)
 
 In this tutorial we will learn:
 

docs/learn/1004-first-env.md

@@ -11,7 +11,7 @@ and use it to deploy a React application to two locations in parallel:
 a dedicated [Amazon S3](https://wikipedia.org/wiki/Amazon_S3) bucket, and a
 [Netlify](https://en.wikipedia.org/wiki/Netlify) site.
 
-You will need to understand the [CUE language](https://cuelang.org), so be sure to read [What Is Cue?](../introduction/1005-what_is_cue.md) if you haven’t already.
+You will need to understand the [CUE language](https://cuelang.org), so be sure to read [What Is Cue?](./1005-what_is_cue.md) if you haven’t already.
 
 In technical terms, our plan is a [CUE Package](https://cuelang.org/docs/concepts/packages/#packages). This tutorial will develop a new CUE package from scratch for our plan, but you can use any Cue package as a plan.
 

docs/learn/1005-what_is_cue.md

@@ -1,5 +1,5 @@
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-sidebar_position: 2
+sidebar_position: 1
 slug: /1005/what-is-cue/
 sidebar_label: What is Cue?
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