rename the models to be more descriptive

Signed-off-by: Matt Williams <m@technovangelist.com>

examples/langchain-python-rag-websummary/README.md

@@ -0,0 +1,15 @@
+# LangChain Web Summarization
+
+This example summarizes a website
+
+## Setup
+
+```
+pip install -r requirements.txt
+```
+
+## Run
+
+```
+python main.py
+```