feat: Add readme

README.md

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+Here's a clean and concise `README.md` for your **`solvertools`** Python library, focusing on its purpose and how to use it without diving into the implementation details:
+
+---
+
+# solvertools
+
+**solvertools** is a lightweight Python library providing utility functions to help build and run Capture The Flag (CTF) challenge solvers. It’s especially useful when integrating with [`ctfcli`](https://github.com/CTFd/ctfcli) for setting up automated healthchecks.
+
+---
+
+## 🔧 Features
+
+- Simplifies the setup for connecting to local or remote challenge instances.
+- Provides easy flag extraction and result reporting.
+- Designed to streamline CTF development workflows.
+
+---
+
+## 🚀 Installation
+
+```bash
+pip install pwntools
+pip install solvertools
+```
+
+## 💡 Designed for ctfcli
+
+This library helps you quickly write challenge solvers that integrate cleanly with `ctfcli`, making it easy to set up automated healthchecks for your challenges.
+
+## 🛠 Requirements
+
+- Python 3.6+
+- [pwntools](https://docs.pwntools.com/)
+
+---
+
+## 🧪 Example Healthcheck Solver
+
+```python
+#!/usr/bin/env python3
+from solvertools import connect_tcp, extract_flag
+
+conn = connect_tcp("challenge.py")
+conn.sendline(b"some input")
+output = conn.recvall().decode()
+extract_flag(output, r"flag\{.*?\}")
+```
+
+---
+
+## 📜 License
+
+MIT License. Feel free to use and adapt!