DOC: fine tune compressor example dataset size for ReadTheDocs (#753)
DOC: fine tune compressor example dataset size for ReadTheDocs (#753)

* DOC: increase number of rows in data used by the compressor example

This way the durations plot is more realistic

joblib/joblib,tomMoral/joblib,joblib/joblib,lesteve/joblib,lesteve/joblib,tomMoral/joblib