Add vault functions to HCL2 side navigation

website/data/docs-navigation.js

@@ -144,6 +144,10 @@ export default [
             category: 'conversion',
             content: ['can', 'convert', 'try'],
           },
+          {
+            category: 'kvstore',
+            content: ['vault'],
+          },
         ],
       },
       'variables',

website/pages/docs/from-1.5/functions/kvstore/index.mdx

@@ -0,0 +1,6 @@
+---
+layout: docs
+page_title: keystore - Functions - Configuration Language
+sidebar_title: Key Store Functions
+description: Overview of available keystore functions
+---

website/pages/docs/from-1.5/functions/vault/index.mdx

@@ -1,6 +0,0 @@
----
-layout: docs
-page_title: vault - Functions - Configuration Language
-sidebar_title: vault Functions
-description: Overview of available vault functions
----