Initial solution: add README.md

README.md

@@ -0,0 +1,24 @@
+# Structured Log Parser
+
+This repository contains a small CLI tool that demonstrates how to parse raw log lines into typed events using **Pydantic v2** and **LangChain** structured output.
+
+## Features
+
+* Discriminated union of two event types (`HttpOkEvent` and `HttpErrorEvent`).
+* Uses LangChain’s `PydanticOutputParser` to let the LLM return a JSON that is automatically validated by Pydantic.
+* Example log with mixed 200 and error responses.
+* Simple table output for quick inspection.
+
+## Installation
+
+```bash
+pip install -r requirements.txt
+```
+
+## Usage
+
+```bash
+python parse_log.py --log path/to/your.log
+```
+
+If `--log` is omitted, an example log is used.