Adds Node.js wrapper badge

Updates the main README to include the npm version badge and details for the official Node.js wrapper.
Lists Node.js in the official bindings table within the examples documentation.

Author: hellobertrand

README.md

@@ -9,6 +9,7 @@
 [![vcpkg](https://img.shields.io/vcpkg/v/zxc)](https://vcpkg.io/en/package/zxc)
 [![Crates.io](https://img.shields.io/crates/v/zxc-compress)](https://crates.io/crates/zxc-compress)
 [![PyPi](https://img.shields.io/pypi/v/zxc-compress)](https://pypi.org/project/zxc-compress)
+[![npm](https://img.shields.io/npm/v/zxc-compress)](https://www.npmjs.com/package/zxc-compress)
 
 [![License](https://img.shields.io/badge/license-BSD--3--Clause-blue)](LICENSE)
 
@@ -335,6 +336,7 @@ Official wrappers maintained in this repository:
 |----------|-----------------|-----------------|---------------|--------|
 | **Rust** | [`crates.io`](https://crates.io/crates/zxc-compress) | `cargo add zxc-compress` | [README](wrappers/rust/zxc/README.md) | [@hellobertrand](https://github.com/hellobertrand) |
 | **Python**| [`PyPI`](https://pypi.org/project/zxc-compress) | `pip install zxc-compress` | [README](wrappers/python/README.md) | [@nuberchardzer1](https://github.com/nuberchardzer1) |
+| **Node.js**| [`npm`](https://www.npmjs.com/package/zxc-compress) | `npm install zxc-compress` | [README](wrappers/nodejs/README.md) | [@hellobertrand](https://github.com/hellobertrand) |
 
 Community-maintained bindings:
 

docs/EXAMPLES.md

@@ -211,6 +211,7 @@ For non-C languages, see the official bindings:
 |----------|---------|-----------------|---------------|
 | **Rust** | [`crates.io`](https://crates.io/crates/zxc-compress) | `cargo add zxc-compress` | [README](../wrappers/rust/zxc/README.md) |
 | **Python**| [`PyPI`](https://pypi.org/project/zxc-compress) | `pip install zxc-compress` | [README](../wrappers/python/README.md) |
+| **Node.js**| [`npm`](https://www.npmjs.com/package/zxc-compress) | `npm install zxc-compress` | [README](../wrappers/nodejs/README.md) |
 
 Community-maintained:
 - **Go**: https://github.com/meysam81/go-zxc