Added the reintro to ML notebook to the repository.
Added the reintro to ML notebook to the repository.

LSSTC-DSFP/LSSTC-DSFP-Sessions,LSSTC-DSFP/LSSTC-DSFP-Sessions,LSSTC-DSFP/LSSTC-DSFP-Sessions,mjuric/LSSTC-DSFP-Sessions