tweak doc configuration

Author: dbu

.doctrine-project.json

@@ -8,17 +8,17 @@
             "name": "2.x",
             "branchName": "2.x",
             "slug": "latest",
-            "upcoming": true
-        },
-        {
-            "name": "1.x",
-            "branchName": "1.x",
-            "slug": "1.x",
             "current": true,
             "aliases": [
                 "current",
                 "stable"
             ]
+        },
+        {
+            "name": "1.x",
+            "branchName": "1.x",
+            "slug": "1.x",
+            "maintained": true
         }
     ]
 }