README

schema 文件来自 https://www.ecma-international.org/publications-and-standards/standards/ecma-376/

presetShapeDefinitions.xml 来自 https://github.com/LibreOffice/core/blob/master/oox/source/drawingml/customshapes/presetShapeDefinitions.xml

因为官方的有错误，漏了 upArrow