Extending example

[eyaltrabelsi]

• improve(documentation): minimal requirements, creating table using spark dataframe, loading iceberg table using spark

[rdblue]

This changes the notebook language to Python and duplicates a cell. I don't think it is something that's ready to merge. There's also a ton of extra metadata.

Also, there's now a published version, 0.2.0, in JitPack so there's no need to duplicate build instructions here.

[eyaltrabelsi]

1. I removed the build instructions
2. I restored the original notebook kernel metadata
3. I removed the redundant metadata I added
4. regarding the duplicates a cell do you mean these (Drop and create a table in HDFS using hive tables/spark dataframe)? do you want me to write it a bit more generic ? to reserve imports only on one cell? remove the spark example ?

[eyaltrabelsi]

@rdblue how does it look now ?