add GravityScore/RustJNI

README.md

@@ -194,6 +194,7 @@ See also [Foreign Function Interface](https://doc.rust-lang.org/book/ffi.html),
   * [mgattozzi/rushs](https://github.com/mgattozzi/rushs) — Haskell in Rust FFI Example
 * Java
   * [drrb/java-rust-example](https://github.com/drrb/java-rust-example) — use Rust from Java [<img src="https://travis-ci.org/drrb/java-rust-example.svg?branch=master">](https://travis-ci.org/drrb/java-rust-example)
+  * [GravityScore/RustJNI](https://github.com/GravityScore/RustJNI) — uses Java from Rust [<img src="https://travis-ci.org/GravityScore/RustJNI.svg?branch=master">](https://travis-ci.org/GravityScore/RustJNI)
 * Lua
   * [jcmoyer/rust-lua53](https://github.com/jcmoyer/rust-lua53) — Lua 5.3 bindings for Rust [<img src="https://travis-ci.org/jcmoyer/rust-lua53.svg?branch=master">](https://travis-ci.org/jcmoyer/rust-lua53)
   * [kballard/rust-lua](https://github.com/kballard/rust-lua) — Safe Rust bindings to Lua 5.1 [<img src="https://travis-ci.org/kballard/rust-lua.svg">](https://travis-ci.org/kballard/rust-lua)