docs: fix site_dir path for docs/ config location

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

docs/mkdocs.yml

@@ -9,7 +9,7 @@ repo_name: LibreSign/xobject-template
 edit_uri: edit/main/docs/source/
 
 docs_dir: source
-site_dir: ../../build/docs-site
+site_dir: ../build/docs-site
 
 theme:
   name: material