message: doce(readme): add used classes
diff: }
  }
  -.react-flow__connection {
  - pointer-events: none;
  -}
  -
  -.react-flow__connection-path {
  - fill: none;
  - stroke: #ddd;
  - stroke-width: 2;
  -}
  -
  .react-flow__edge-path {
  fill: none;
  stroke: #bbb;
  fill: white;
  }
  +.react-flow__connection {
  + pointer-events: none;
  +}
  +
  +.react-flow__connection-path {
  + fill: none;
  + stroke: #ddd;
  + stroke-width: 2;
  +}
  +
  .react-flow__nodes {
  width: 100%;
  height: 100%;
  font-size: 12px;
  }
  +.react-flow__nodesselection {
  + z-index: 3;
  + position: absolute;
  + width: 100%;
  + height: 100%;
  + top: 0;
  + left: 0;
  + transform-origin: left top;
  + pointer-events: none;
  +
  + &-rect {
  + position: absolute;
  + background: rgba(0, 89, 220, 0.08);
  + border: 1px dotted rgba(0, 89, 220, 0.8);
  + pointer-events: all;
  + }
  +}
  +
  .react-flow__handle {
  position: absolute;
  width: 10px;
  transform: translate(0, -50%);
  }
  }
  -
  -.react-flow__nodesselection {
  - z-index: 3;
  - position: absolute;
  - width: 100%;
  - height: 100%;
  - top: 0;
  - left: 0;
  - transform-origin: left top;
  - pointer-events: none;
  -
  - &-rect {
  - position: absolute;
  - background: rgba(0, 89, 220, 0.08);
  - border: 1px dotted rgba(0, 89, 220, 0.8);
  - pointer-events: all;
  - }
  -}
  \ No newline at end of file
  