update notebooks/README
-[using lasio with pandas DataFrame.ipynb](using%20lasio%20with%20pandas%20DataFrame.ipynb)
+# lasio tutorials
+
+## Reading data
+
+- [Basic example of reading a LAS file](basic%20example%20of%20reading%20a%20LAS%20file.ipynb)
+- [Using lasio with pandas DataFrame](using%20lasio%20with%20pandas%20DataFrame.ipynb)
+- [Reading header information from a LAS file](reading%20header%20information%20from%20a%20LAS%20file.ipynb)
+- [Converting a LAS file to an Excel spreadsheet](converting%20a%20LAS%20file%20to%20an%20Excel%20spreadsheet.ipynb)
+- [Exporting a LAS file to JSON](exporting%20a%20LAS%20file%20to%20JSON.ipynb)
+
+## Editing or writing LAS files
+
+- [Build LAS file from scratch](build%20LAS%20file%20from%20scratch.ipynb)
+- [Converting LAS file with wrapped data to unwrapped](converting%20LAS%20file%20with%20wrapped%20data%20to%20unwrapped.ipynb)
+
+## Miscellaneous
+
+- [Set logging level for lasio](set%20logging%20level%20for%20lasio.ipynb)
