DOC: Add remark on decorating methods.
DOC: Add remark on decorating methods.

karandesai-96/joblib,tomMoral/joblib,joblib/joblib,aabadie/joblib,tomMoral/joblib,lesteve/joblib,karandesai-96/joblib,aabadie/joblib,lesteve/joblib,joblib/joblib