add face_tracking and ignore model files #30

.gitignore

@@ -4,6 +4,10 @@
 ## temporal vim files
 *.sw*
 
+##temporal model files
+blaze_face_short_range.tflite
+face_landmarker.task
+
 ## files for html-slides
 _site/
 **/*.jekyll-cache

rerun/examples/face_tracking/README.md

@@ -0,0 +1,18 @@
+# face_tracking
+
+## Download scripts
+```
+wget https://raw.githubusercontent.com/rerun-io/rerun/main/examples/python/face_tracking/requirements.txt
+wget https://raw.githubusercontent.com/rerun-io/rerun/main/examples/python/face_tracking/main.py
+```
+
+
+## Run scripts
+mamba activate rrVE
+pip install -r requirements.txt
+python main.py
+
+
+## Reference
+https://github.com/rerun-io/rerun/tree/main/examples/python/face_tracking
+