Add documentation deploy badge (#412)

Author: kjy5

README.md

@@ -3,6 +3,7 @@
 [![PyPI version](https://badge.fury.io/py/ephys-link.svg)](https://badge.fury.io/py/ephys-link)
 [![CodeQL](https://github.com/VirtualBrainLab/ephys-link/actions/workflows/codeql-analysis.yml/badge.svg)](https://github.com/VirtualBrainLab/ephys-link/actions/workflows/codeql-analysis.yml)
 [![Dependency Review](https://github.com/VirtualBrainLab/ephys-link/actions/workflows/dependency-review.yml/badge.svg)](https://github.com/VirtualBrainLab/ephys-link/actions/workflows/dependency-review.yml)
+[![Deploy Documentation](https://github.com/VirtualBrainLab/ephys-link/actions/workflows/deploy-docs.yml/badge.svg)](https://github.com/VirtualBrainLab/ephys-link/actions/workflows/deploy-docs.yml)
 [![Hatch project](https://img.shields.io/badge/%F0%9F%A5%9A-Hatch-4051b5.svg)](https://github.com/pypa/hatch)
 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
 

docs/index.md

@@ -3,6 +3,7 @@
 [![PyPI version](https://badge.fury.io/py/ephys-link.svg)](https://badge.fury.io/py/ephys-link)
 [![CodeQL](https://github.com/VirtualBrainLab/ephys-link/actions/workflows/codeql-analysis.yml/badge.svg)](https://github.com/VirtualBrainLab/ephys-link/actions/workflows/codeql-analysis.yml)
 [![Dependency Review](https://github.com/VirtualBrainLab/ephys-link/actions/workflows/dependency-review.yml/badge.svg)](https://github.com/VirtualBrainLab/ephys-link/actions/workflows/dependency-review.yml)
+[![Deploy Documentation](https://github.com/VirtualBrainLab/ephys-link/actions/workflows/deploy-docs.yml/badge.svg)](https://github.com/VirtualBrainLab/ephys-link/actions/workflows/deploy-docs.yml)
 [![Hatch project](https://img.shields.io/badge/%F0%9F%A5%9A-Hatch-4051b5.svg)](https://github.com/pypa/hatch)
 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)