add README.md

README.md

@@ -0,0 +1,7 @@
+# OpenECAD Dataset
+
+This repo releases models introducing in OpenECAD (2406.09913[v1](https://arxiv.org/abs/2406.09913v1) & [v2](https://arxiv.org/abs/2406.09913v2)).
+
+The codes of the OpenECAD dataset can be converted into STEP files by this tool: [Yuki-Kokomi/OpenECADtoSTEP](https://github.com/Yuki-Kokomi/OpenECADtoSTEP).
+
+For datasets from [v3](https://arxiv.org/abs/2406.09913v3) and onwards of the paper, please refer to the subsequent updated versions of the OpenECAD Datasets.