fix(network): add to menu

Author: RoRoJ

menu/navigation.json

@@ -2712,6 +2712,10 @@
                   {
                     "label": "Understanding routing",
                     "slug": "understanding-routing"
+                  },
+                  {
+                    "label": "Getting the most from Private Networks",
+                    "slug": "getting-most-private-networks"
                   }
                 ],
                 "label": "Additional Content",
@@ -2788,7 +2792,17 @@
                 ],
                 "label": "API/CLI",
                 "slug": "api-cli"
-              }
+              },
+              {
+              "items": [
+                {
+                  "label": "Public connectivity: best practices",
+                  "slug": "public-connectivity-best-practices"
+                }
+              ],
+              "label": "Additional Content",
+              "slug": "reference-content"
+            }
             ],
             "label": "IPAM",
             "slug": "ipam"