updated marketplace SDK placement (#78)

Author: JamesLawton

docs.json

@@ -260,23 +260,22 @@
                   "sdk/web/hooks/useWallets"
                 ]
               },
-              "sdk/web/custom-configuration",
-              "sdk/web/custom-connectors"
-            ]
-          },
-          {
-            "group": "Marketplace SDK",
-            "pages": [
-              "sdk/marketplace-sdk/overview",
-              "sdk/marketplace-sdk/getting-started",
               {
-                "group": "Hooks",
+                "group": "Secondary Sales Marketplace",
                 "pages": [
-                  "sdk/marketplace-sdk/hooks/overview",
-                  "sdk/marketplace-sdk/hooks/marketplace-actions",
-                  "sdk/marketplace-sdk/hooks/marketplace-data-hooks"
+                  "sdk/marketplace-sdk/overview",
+                  "sdk/marketplace-sdk/getting-started",
+                  {
+                    "group": "Hooks",
+                    "pages": [
+                      "sdk/marketplace-sdk/hooks/marketplace-actions",
+                      "sdk/marketplace-sdk/hooks/marketplace-data-hooks"
+                    ]
+                  }
                 ]
-              }
+              },
+              "sdk/web/custom-configuration",
+              "sdk/web/custom-connectors"
             ]
           },
           {