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README.md

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 **_libcom_** covers various related tasks in the field of image composition, including image harmonization, painterly image harmonization, shadow generation, object placement, generative composition, quality evaluation, *etc*. For each task, we integrate one or two selected methods considering both efficiency and effectiveness. The selected methods will be continuously updated upon the emergence of better methods. 
 
 <details open>
-<summary>Main APIs</summary>
+<summary>Main Parts</summary>
 
 - **get_composite_image** generates composite images using naive copy-and-paste followed by image blending.
 - **OPAScoreModel** is an object placement assessment model that evaluates the rationality of object placement by predicting a rationality scores.