Added WASM-PDF to Graphics/PDF section

WASM-PDF was created with Rust and wasm-bindgen: https://github.com/jussiniinikoski/wasm-pdf

README.md

@@ -1043,6 +1043,7 @@ See also [Are we game yet?](http://arewegameyet.com)
   * [J-F-Liu/lopdf](https://github.com/J-F-Liu/lopdf) — PDF document manipulation [<img src="https://api.travis-ci.org/J-F-Liu/lopdf.svg?branch=master">](https://travis-ci.org/J-F-Liu/lopdf)
 * [Vulkan](https://www.khronos.org/vulkan/) [[vulkan](https://crates.io/keywords/vulkan)]
   * [vulkano](https://github.com/vulkano-rs/vulkano) [[vulkano](https://crates.io/crates/vulkano)] — [<img src="https://api.travis-ci.org/vulkano-rs/vulkano.svg?branch=master">](https://travis-ci.org/vulkano-rs/vulkano)
+  * [WASM-PDF](https://github.com/jussiniinikoski/wasm-pdf) – Generates PDF files with JavaScript and WASM (WebAssembly)
 
 ### Graph processing