Adding description in credits.
Adding description in credits.

macGRID-SRN/streetmix,kodujdlapolski/streetmix,kodujdlapolski/streetmix,kodujdlapolski/streetmix,codeforamerica/streetmix,magul/streetmix,magul/streetmix,CodeForBrazil/streetmix,CodeForBrazil/streetmix,magul/streetmix,macGRID-SRN/streetmix,macGRID-SRN/streetmix,codeforamerica/streetmix,codeforamerica/streetmix,CodeForBrazil/streetmix