Update README

README.md

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+---
+license: apache-2.0
+tags:
+  - kornia
+  - feature-matching
+---
+
+# kornia/lightglue
+
+Pretrained weights for **LightGlue** (Local Feature Matching at Light Speed),
+used by [`kornia.feature.LightGlue`](https://kornia.readthedocs.io/en/latest/feature.html).
+
+LightGlue is a sparse feature matcher built as a pruned transformer that early-exits
+unpromising keypoint pairs at each layer, achieving near-SuperGlue accuracy at a
+fraction of the latency. ICCV 2023.
+
+**Original repo:** [cvg/LightGlue](https://github.com/cvg/LightGlue)
+
+## Weights
+
+| File | Descriptor |
+|------|------------|
+| `superpoint_lightglue.pth` | SuperPoint |
+| `disk_lightglue.pth` | DISK |
+| `aliked_lightglue.pth` | ALIKED |
+| `raco_aliked_lightglue.pth` | RaCo-ALIKED |
+| `sift_lightglue.pth` | SIFT |
+| `doghardnet_lightglue.pth` | DoG-AffNet-HardNet |
+| `keynet_affnet_hardnet_lightglue.pth` | Key.Net-AffNet-HardNet |
+| `dedodeb_lightglue.pth` | DeDoDe-B |
+| `dedodeg_lightglue.pth` | DeDoDe-G |
+| `xfeat-lighterglue.pt` | XFeat (LighterGlue) |
+
+## Citation
+
+```bibtex
+@article{LightGlue2023,
+    author  = {Philipp Lindenberger and Paul-Edouard Sarlin and Marc Pollefeys},
+    title   = {{LightGlue}: Local Feature Matching at Light Speed},
+    journal = {ICCV},
+    year    = {2023}
+}
+```