docs: "Creating a sitemap" is no longer stub page (#10156)

Got rid of the * as the link now isn't a stub

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www/src/data/sidebars/doc-links.yaml

@@ -218,7 +218,7 @@
           link: /docs/adding-tags-and-categories-to-blog-posts/
         - title: Adding pagination
           link: /docs/adding-pagination/
-        - title: Creating a sitemap*
+        - title: Creating a sitemap
           link: /docs/creating-a-sitemap/
         - title: Linking between pages
           link: /docs/linking-between-pages/