docs: support detecting broken link cross-projects (#10483)

* docs: support detecting broken link cross-projects

* remove double separators

www/apps/book/app/learn/basics/workflows/page.mdx

@@ -288,6 +288,6 @@ You can now execute this workflow in a custom API route, scheduled job, or subsc
 
 <Note title="Tip">
 
-Find a full list of the registered resources in the Medusa container and their registration key in [this reference](!resources!/resources/medusa-container-resources). You can use these resources in your custom workflows.
+Find a full list of the registered resources in the Medusa container and their registration key in [this reference](!resources!/medusa-container-resources). You can use these resources in your custom workflows.
 
 </Note>

www/apps/book/app/learn/customization/extend-features/query-linked-records/page.mdx

@@ -6,7 +6,7 @@ export const metadata = {
 
 # {metadata.title}
 
-In the previous chapters, you [defined a link](../define-link/page.mdx) between the [custom Brand Module](../../custom-features/module/page.mdx) and Medusa's [Product Module](!resources!/comerce-modules/product), then [extended the create-product flow](../extend-create-product/page.mdx) to link a product to a brand.
+In the previous chapters, you [defined a link](../define-link/page.mdx) between the [custom Brand Module](../../custom-features/module/page.mdx) and Medusa's [Product Module](!resources!/commerce-modules/product), then [extended the create-product flow](../extend-create-product/page.mdx) to link a product to a brand.
 
 In this chapter, you'll learn how to retrieve a product's brand (and vice-versa) in two ways: Using Medusa's existing API route, or in customizations, such as a custom API route.
 

www/apps/book/next.config.mjs

@@ -9,11 +9,27 @@ import {
   crossProjectLinksPlugin,
 } from "remark-rehype-plugins"
 import { sidebar } from "./sidebar.mjs"
+import path from "path"
 
 const withMDX = mdx({
   extension: /\.mdx?$/,
   options: {
     rehypePlugins: [
+      [
+        brokenLinkCheckerPlugin,
+        {
+          crossProjects: {
+            resources: {
+              projectPath: path.resolve("..", "resources"),
+              hasGeneratedSlugs: true,
+            },
+            ui: {
+              projectPath: path.resolve("..", "ui"),
+              contentPath: "src/content/docs",
+            },
+          },
+        },
+      ],
       [
         crossProjectLinksPlugin,
         {
@@ -37,7 +53,6 @@ const withMDX = mdx({
             process.env.VERCEL_ENV === "production",
         },
       ],
-      [brokenLinkCheckerPlugin],
       [localLinksRehypePlugin],
       [
         rehypeMdxCodeProps,