added a readme

.gitignore

@@ -97,3 +97,5 @@ ENV/
 
 # mypy
 .mypy_cache/
+
+README.html

README.md

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+# NA-Birds dataset wrapper
+
+NA-Birds dataset:  http://dl.allaboutbirds.org/nabirds
+
+Some example code how to use this library can be found in `example.py`