fix: update wrong links (#2524)

Co-authored-by: Chris Swithinbank <swithinbank@gmail.com>

.changeset/sour-forks-shout.md

@@ -0,0 +1,5 @@
+---
+'@astrojs/starlight': patch
+---
+
+Fixes a broken link to Astro’s Docs in an error message

docs/src/content/docs/guides/i18n.mdx

@@ -392,7 +392,7 @@ See the [`dir()` reference in the i18next documentation](https://www.i18next.com
 
 You can use [`Astro.currentLocale`](https://docs.astro.build/en/reference/api-reference/#astrocurrentlocale) to read the current locale in `.astro` components.
 
-The following example reads the current locale and uses it with the [`getRelativeLocaleUrl()`](https://docs.astro.build/en/reference/api-reference/#getrelativelocaleurl) helper to generate a link to an about page in the current language:
+The following example reads the current locale and uses it with the [`getRelativeLocaleUrl()`](https://docs.astro.build/en/reference/modules/astro-i18n/#getrelativelocaleurl) helper to generate a link to an about page in the current language:
 
 ```astro
 ---

docs/src/content/docs/reference/overrides.md

@@ -103,7 +103,7 @@ entry: {
 }
 ```
 
-Learn more about the shape of this object in [Astro’s Collection Entry Type](https://docs.astro.build/en/reference/api-reference/#collection-entry-type) reference.
+Learn more about the shape of this object in [Astro’s Collection Entry Type](https://docs.astro.build/en/reference/modules/astro-content/#collectionentry) reference.
 
 #### `sidebar`
 

packages/starlight/__tests__/i18n-sidebar/sidebar-internal-link-error.test.ts

@@ -27,7 +27,7 @@ describe('getSidebar', () => {
 				The slug \`"getting-started"\` specified in the Starlight sidebar config does not exist.
 			Hint:
 				Update the Starlight config to reference a valid entry slug in the docs content collection.
-				Learn more about Astro content collection slugs at https://docs.astro.build/en/reference/api-reference/#getentry"
+				Learn more about Astro content collection slugs at https://docs.astro.build/en/reference/modules/astro-content/#getentry"
 		`);
 	});
 });

packages/starlight/utils/navigation.ts

@@ -163,7 +163,7 @@ function linkFromInternalSidebarLinkItem(
 			throw new AstroError(
 				`The slug \`"${item.slug}"\` specified in the Starlight sidebar config does not exist.`,
 				'Update the Starlight config to reference a valid entry slug in the docs content collection.\n' +
-					'Learn more about Astro content collection slugs at https://docs.astro.build/en/reference/api-reference/#getentry'
+					'Learn more about Astro content collection slugs at https://docs.astro.build/en/reference/modules/astro-content/#getentry'
 			);
 		}
 	}