Update unconfoundedr documentation

Author: actions-user

packages/myrpackage/CONTRIBUTING.html

@@ -4,7 +4,7 @@ pkgdown_sha: ~
 articles:
   advanced: advanced.html
   intro: intro.html
-last_built: 2025-08-17T00:20Z
+last_built: 2025-08-29T20:34Z
 urls:
   reference: https://diogoribeiro7.github.io/packages/myrpackage/reference
   article: https://diogoribeiro7.github.io/packages/myrpackage/articles

packages/myrpackage/articles/advanced.html

@@ -10,6 +10,8 @@
 <url><loc>https://diogoribeiro7.github.io/packages/myrpackage/authors.html</loc></url>
 <url><loc>https://diogoribeiro7.github.io/packages/myrpackage/index.html</loc></url>
 <url><loc>https://diogoribeiro7.github.io/packages/myrpackage/news/index.html</loc></url>
+<url><loc>https://diogoribeiro7.github.io/packages/myrpackage/reference/capitalize_first.html</loc></url>
+<url><loc>https://diogoribeiro7.github.io/packages/myrpackage/reference/get_supported_languages.html</loc></url>
 <url><loc>https://diogoribeiro7.github.io/packages/myrpackage/reference/goodbye.html</loc></url>
 <url><loc>https://diogoribeiro7.github.io/packages/myrpackage/reference/hello.html</loc></url>
 <url><loc>https://diogoribeiro7.github.io/packages/myrpackage/reference/index.html</loc></url>