patch: minor bug fixes for evaluator and task configurations, documentation update (#121)

* fix: /cursor_position api return format fix

* chore: update README.md to remove deprecated command

* fix: add base score for evaluators and minor bug fixes

* fix: add base score for setup configurations

---------

Co-authored-by: Jiaqi Deng <jiaqideng@Jiaqis-MacBook-Pro.local>

evaluation_examples/examples/vlc/efcf0d81-0835-4880-b2fd-d866e8bc2294.json

@@ -52,6 +52,9 @@
     "result": {
       "type": "vm_wallpaper",
       "dest": "result_wallpaper.png"
+    },
+    "options": {
+      "reference_base_result": 0.11
     }
   }
-}
+}