added RIDE field to models.py https://github.com/acdh-oeaw/dig_ed_cat/issues/74
added RIDE field to models.py
https://github.com/acdh-oeaw/dig_ed_cat/issues/74

acdh-oeaw/dig_ed_cat,acdh-oeaw/dig_ed_cat,acdh-oeaw/dig_ed_cat