update readme

README.md

@@ -97,7 +97,7 @@ Note:
 - Type D prompt has 4 objects (all the object fields will have values)
 
 Sample Examples:
-- Type A: a football located on a bench in a basement. (object1: foorball, surface: bench, scene: basement)
+- Type A: a football located on a bench in a basement. (object1: football, surface: bench, scene: basement)
 - Type B: a coffee mug beside a notebook on a wooden table in a home office. (object1: coffee mug, object2: notebook, surface: wooden table, scene: home office)
 - Type C: a jar, a coffee mug, and a bowl placed on a kitchen island in a kitchen. (object1: jar, object2: coffee mug, object3: bowl, surface: kitchen island, scene: kitchen)
 - Type D: An arrangement of an air purifier, a pair of slippers, a guitar, and a pair of shoes on a floor in a bedroom. (object1:air purifier, object2: pair of slippers, object3: guitar, object4: pair of shoes, surface: floor, scene: bedroom)