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/libreoffice_impress/3b27600c-3668-4abd-8f84-7bcdebbccbdb.json

@@ -66,6 +66,11 @@
           0,
           0,
           255
+        ],
+        "original_rgb": [
+          255,
+          255,
+          255
         ]
       }
     },