fix: Remove ; in Vertex AI example configuration in Readme.md and add model_version as config (#1508)

* Removed ; in Google Vertex example configuration which resulted in an error when building

* Minor fixed in README.md for Google Vertex model config

---------

Co-authored-by: Sebastian Schroen <[email protected]>

README.md

@@ -780,7 +780,10 @@ MODELS=`[
           "type": "vertex",
           "project": "abc-xyz",
           "location": "europe-west3",
-          "model": "gemini-1.5-pro-preview-0409", // model-name
+          "extraBody": {
+          "model_version": "gemini-1.5-pro-preview-0409",
+          },
+
           // Optional
           "safetyThreshold": "BLOCK_MEDIUM_AND_ABOVE",
           "apiEndpoint": "", // alternative api endpoint url,
@@ -795,7 +798,7 @@ MODELS=`[
               "preferredMimeType": "image/png",
               "maxSizeInMB": 5,
               "maxWidth": 2000,
-              "maxHeight": 1000;
+              "maxHeight": 1000,
             }
           }
        }]