chore: add listener for git-age docs

contour/resources/default_gateway.yaml

@@ -167,4 +167,19 @@ spec:
       tls:
         mode: Terminate
         certificateRefs:
-          - name: fider-login-tls
+          - name: fider-login-tls
+
+    - name: git-age-docs
+      hostname: "docs.git-age.icb4dc0.de"
+      port: 443
+      protocol: HTTPS
+      allowedRoutes:
+        namespaces:
+          from: Selector
+          selector:
+            matchLabels:
+              kubernetes.io/metadata.name: garage
+      tls:
+        mode: Terminate
+        certificateRefs:
+          - name: git-age-docs-tls