Update README.md

Author: dimgold

README.md

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 # ETL with Python and MySQL
 ETL with Python Training - Taught by me during [Data Warehousing course - Tel Aviv University 2017](http://www30.tau.ac.il/yedion/syllabuse.asp?course=0571417202)
 
-### The Training is planned for ~2 hours and containing 2 notebook files:
+### The Training is planned for ~2 hours and containing 3 notebook files:
+* **jupyter-notebook.ipynb** - quick Jupiter notebook introduction and tutorial
 * **Mysql-io.ipynb**   - Input/Output to MySQL using [MySQLdb connector](http://mysql-python.sourceforge.net/MySQLdb.html)
 * **ETL with Python.ipynb**  - ETL with python using [pETL](https://petl.readthedocs.io/en/latest/) package