Merge pull request #40 from Robbepop/rf-mention-wasmi-as-supporting-engine

Add Wasmi to list of engines supporting the proposal

Author: fitzgen

proposals/custom-page-sizes/Overview.md

@@ -415,6 +415,7 @@ Engines:
 * [x] [WABT's `wasm2c`](https://github.com/WebAssembly/wabt/pull/2508)
 * [x] [Wasmtime](https://github.com/bytecodealliance/wasmtime/pull/8763)
 * [x] [Wasm3](https://github.com/tommie/wasm3/commit/3d2dfb75129802080e8ea6ffe5b8eded651bda68)
+* [x] [Wasmi](https://github.com/wasmi-labs/wasmi/pull/1349)
 
 Toolchains: