Update README.md

Author: sheridana

README.md

@@ -1,2 +1,46 @@
 # lsd-lite
 Simple LSD and affinity graph computation
+
+Install: `pip install lsd-lite`
+
+Tutorial: [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/funkelab/lsd-lite/blob/main/lsd_lite_tutorial.ipynb)
+
+Example:
+
+```py
+from lsd_lite import get_affs, get_lsds
+
+# 2d short range affs example
+affs = get_affs(segmentation, neighborhood=[[1,0],[0,1]])
+
+# 2d long range affs example
+affs = get_affs(
+    segmentation,
+    neighborhood=[
+      [1,0],
+      [0,1],
+      [3,0],
+      [0,3],
+      [6,0],
+      [0,6]
+    ]
+)
+
+# 3d long range adds example
+affs = get_affs(
+    segmentation,
+    neighborhood=[
+      [1,0,0],
+      [0,1,0],
+      [3,0,0],
+      [0,3,0],
+      [0,0,3],
+      [6,0,0],
+      [0,6,0],
+      [0,0,6]
+    ]
+)
+
+# lsds example
+lsds = get_lsds(segmentation, sigma=10, downsample=2)
+```