Improve doc.

README.md

@@ -99,7 +99,13 @@ Run the included setup script **once** to download the required `vader_lexicon`
 python rstat_tool/setup_nltk.py
 ```
 
-### 7. Build and Install the Commands
+### 7. Set Up Playwright
+Run the install routine for playwright. You might need to install some dependencies. Follow on-screen instruction if that's the case.
+```bash
+playwright install
+```
+
+### 8. Build and Install the Commands
 Install the tool in "editable" mode. This creates the `rstat` and `rstat-dashboard` commands in your virtual environment and links them to your source code.
 
 ```bash