We currently provide two tutorials to get you started with Snorkel.
In this tutorial, we go over the basics of Snorkel by building an application to identify mentions of spouses in a corpus of news articles. We keep this one well manicured.
For a more advanced tutorial, check out the CDR tutorial, where we build an application to extract chemical-disease relations from academic literature. We check that it runs end-to-end using automatic testing, but it's also under active development so you may run into small issues along the way. So it goes with real-world information extraction!