Update README

README.md

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+---
+license: mit
+tags:
+  - kornia
+  - line-detection
+  - feature-description
+---
+
+# kornia/sold2
+
+Pretrained weights for **SOLD²** (Self-supervised Occlusion-aware Line Description
+and Detection), used by
+[`kornia.feature.SOLD2`](https://kornia.readthedocs.io/en/latest/feature.html).
+
+SOLD² detects line segments and computes semi-dense descriptors along them using a
+shared encoder. Trained on wireframe and outdoor datasets. CVPR 2021.
+
+**Original repo:** [cvg/SOLD2](https://github.com/cvg/SOLD2)
+
+## Weights
+
+| File | Training data |
+|------|--------------|
+| `sold2_wireframe.pth` | Wireframe dataset |
+
+## Citation
+
+```bibtex
+@inproceedings{SOLD22021,
+    author    = {Pautrat*, Rémi and Lin*, Juan-Ting and Larsson, Viktor
+                 and Oswald, Martin R. and Pollefeys, Marc},
+    title     = {{SOLD2}: Self-supervised Occlusion-aware Line Description and Detection},
+    booktitle = {CVPR},
+    year      = {2021}
+}
+```