Update src/files/json.ts

Co-authored-by: Chris Markiewicz <[email protected]>

Author: rwblair

src/files/json.ts

@@ -29,7 +29,7 @@ export async function loadJSON(file: BIDSFile): Promise<Record<string, unknown>>
     throw { key: 'JSON_INVALID' } // Raise syntax errors
   }
   if (Array.isArray(parsedText) || typeof parsedText !== "object") {
-    throw { key: 'JSON_NOT_AN_OBJECT' }
+    throw { key: 'JSON_NOT_AN_OBJECT', evidence: text.substring(0, 10) + (text.length > 10 ? '...' : '') }
   }
   return parsedText
 }