partial work on Day 4

lessons/README.md

@@ -54,4 +54,9 @@ git clone [email protected]:stanfordjournalism/data-journalism-notebooks.git
 
 Once the repo is opened locally in VS Code, navigate to `content/web_scraping/README.ipynb` and work through all notebooks, in order. **There will be a quiz on the material next class.**
 
-> NOTE: If you're new to browser developer tools, level up using materials for Chrome or Firefox (just pick one) in `content/web_scraping/resources.ipynb`).
+> NOTE: If you're new to browser developer tools, level up using materials for Chrome or Firefox (just pick one) in `content/web_scraping/resources.ipynb`).
+
+### Day 4 - Quiz and CLEAN Scrapers
+
+- Overview of the Community Law Enforcement Accountability Network (CLEAN)
+- [clean-scrapers](https://github.com/biglocalnews/clean-scrapers) - Open source scraper contributions as weekend assignment