add example json in docs directory

docs/docs/examples/bizyair_box_point_guided_segment-anything.json

@@ -0,0 +1,262 @@
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+      "widgets_values": [
+        "clipspace/clipspace-mask-30796.600000023842.png [input]",
+        false,
+        "image"
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+    {
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+      "type": "Note",
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+      "widgets_values": [
+        "SAM EDITOR功能：\n\n可选功能：point模式和box模式\n\n使用步骤：☁️BizyAir Point-Box Guided SAM 节点上右键选择Open in SAM EDITOR，可以通过Select mode按钮切换模式，point模式下通过鼠标左键单击选择抠图区域，box模式下拖动鼠标进行框选\n\n【注意】服务器断开后重连需要重新选择抠图区域，否则会出错\n\nPoint mode按钮： 工作在point mode下，point mode按钮精准控制分割区域，点中区域是想保留得区域（remain）或者要去除得区域（remove）\n\nClear按钮：清除画布上得所有选择抠图区域\n\nUndo按钮：撤销上次选择得抠图区域\n\nCancel：清除画布上得所有选择抠图区域并退出\n\nSave to node: 保存\n\n"
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+}