remove document example for now

examples/langchain-document/README.md

-# LangChain Web Summarization
-
-This example summarizes a website
-
-## Setup
-
-```
-pip install -r requirements.txt
-```
-
-## Run
-
-```
-python main.py
-```

examples/langchain-document/main.py

-from langchain.llms import Ollama
-from langchain.document_loaders import WebBaseLoader
-from langchain.chains.summarize import load_summarize_chain
-
-loader = WebBaseLoader("https://ollama.ai/blog/run-llama2-uncensored-locally")
-docs = loader.load()
-
-llm = Ollama(model="llama2")
-chain = load_summarize_chain(llm, chain_type="stuff")
-
-result = chain.run(docs)
-print(result)

examples/langchain-document/requirements.txt

-langchain==0.0.259
-bs4==0.0.1
\ No newline at end of file