docs(readme): update badges and add contributing/security sections

Author: swaQQii

README.md

@@ -1,13 +1,14 @@
 [![Website](https://img.shields.io/badge/Website-coredocs.eu-9146FF?style=for-the-badge&logo=google-chrome&logoColor=white)](https://coredocs.eu)
-
 [![Lint](https://img.shields.io/github/actions/workflow/status/swaQQii/coredocs-netbox-scripts/lint.yml?style=for-the-badge&label=Lint%20CI&logo=github)](https://github.com/swaQQii/coredocs-netbox-scripts/actions/workflows/lint.yml)
 [![Style](https://img.shields.io/github/actions/workflow/status/swaQQii/coredocs-netbox-scripts/style.yml?style=for-the-badge&label=Style%20CI&logo=github)](https://github.com/swaQQii/coredocs-netbox-scripts/actions/workflows/style.yml)
-
 [![Last Commit](https://img.shields.io/github/last-commit/swaQQii/coredocs-netbox-scripts?style=for-the-badge)](https://github.com/swaQQii/coredocs-netbox-scripts/commits/main)
 
 [![Made with Python](https://img.shields.io/badge/Made%20with-Python-3776AB?style=for-the-badge&logo=python&logoColor=white)](https://www.python.org/)
 [![License: MIT](https://img.shields.io/badge/License-MIT-green.svg?style=for-the-badge)](LICENSE)
 
+[![GitHub issues](https://img.shields.io/github/issues/swaQQii/coredocs-netbox-scripts?style=for-the-badge)](https://github.com/swaQQii/coredocs-netbox-scripts/issues)
+[![GitHub pull requests](https://img.shields.io/github/issues-pr/swaQQii/coredocs-netbox-scripts?style=for-the-badge)](https://github.com/swaQQii/coredocs-netbox-scripts/pulls)
+
 # coredocs-netbox-scripts
 
 Collection of reusable **NetBox Custom Scripts** – automation examples for:
@@ -23,9 +24,8 @@ Collection of reusable **NetBox Custom Scripts** – automation examples for:
 
 - [Getting Started](#getting-started)
 - [Available Scripts](#available-scripts)
-  - [Hello Script](docs/hello_script.md) → [Code](scripts/01_hello_script.py)
-  - [Reserve IPv4 Script](docs/reserve_ipv4.md) → [Code](scripts/02_reserve_ipv4.py)
-  - [Create Site (Auto Geo)](docs/create_site_osm.md) → [Code](scripts/03_create_site_osm.py)
+- [Contributing](#contributing)
+- [Security](#security)
 - [License](#license)
 - [Related](#related)
 
@@ -46,29 +46,42 @@ Collection of reusable **NetBox Custom Scripts** – automation examples for:
 3. Alternatively, place them under your NetBox installation:
 4. Run scripts via the NetBox web interface.
 
-- Toggle **Commit** off → dry run (no database changes)
-- Toggle **Commit** on → changes are saved
+- Toggle **Commit** off → dry run (no database changes)  
+- Toggle **Commit** on → changes are saved  
 
 ---
 
 ## Available Scripts
 
-- **[Hello Script](docs/hello_script.md)** – Minimal example to demonstrate inputs, logging, and commit.
-- **[Reserve IPv4](docs/reserve_ipv4.md)** – Finds the first free IPv4 in a prefix and assigns it.
-- **[Create Site (Auto-Geo)](docs/create_site_osm.md)** – Creates a Site using OSM geocoding, coordinates, and timezone auto-detection.
+- **[Hello Script](docs/hello_script.md)** – Minimal example to demonstrate inputs, logging, and commit.  
+- **[Reserve IPv4](docs/reserve_ipv4.md)** – Finds the first free IPv4 in a prefix and assigns it.  
+- **[Create Site (Auto-Geo)](docs/create_site_osm.md)** – Creates a Site using OSM geocoding, coordinates, and timezone auto-detection.  
+
+---
+
+## Contributing
+
+Contributions are welcome!  
+See the [Contributing Guidelines](CONTRIBUTING.md) before opening issues or pull requests.  
+
+---
+
+## Security
+
+If you discover a security issue, please review our [Security Policy](SECURITY.md).  
 
 ---
 
 ## License
 
 This project is licensed under the [MIT License](LICENSE).  
-You are free to use, modify, and distribute these scripts with attribution.
+You are free to use, modify, and distribute these scripts with attribution.  
 
 ---
 
 ## Related
 
 These scripts are part of the **[CoreDocs](https://coredocs.eu)** knowledge base project,  
-which provides open IT guides, tools, and documentation resources.
+which provides open IT guides, tools, and documentation resources.  
 
 [![Discord](https://img.shields.io/badge/Discord-Join-5865F2?style=for-the-badge&logo=discord&logoColor=white)](https://discord.gg/Y6pGPFacvp)