add selfie_segmentation

docs/assets/example/danmuku.mask.js

@@ -1,6 +1,9 @@
 // npm i artplayer-plugin-danmuku-mask
 // import artplayerPluginDanmukuMask from 'artplayer-plugin-danmuku-mask';
 
+// npm i @mediapipe/selfie_segmentation
+// 把 node_modules/@mediapipe/selfie_segmentation 目录复制到你的项目下
+
 var art = new Artplayer({
     container: '.artplayer-app',
     url: '/assets/sample/video.mp4',
@@ -13,7 +16,7 @@ var art = new Artplayer({
             danmuku: '/assets/sample/danmuku.xml'
         }),
         artplayerPluginDanmukuMask({
-            //
+            solutionPath: '/assets/@mediapipe/selfie_segmentation',
         }),
     ],
 });