Add: Link references

sphinx_gemini_builder/writer.py

@@ -592,7 +592,11 @@ class GeminiTranslator(SphinxTranslator):
         pass
 
     def visit_reference(self, node: Element) -> None:
-        pass
+        if 'refuri' in node:
+            self.end_block()
+            self.add_link(node['refuri'], node.astext())
+            self.end_block()
+            raise nodes.SkipNode
 
     def depart_reference(self, node: Element) -> None:
         pass