Add hoodmane to CODEOWNERS for Emscripten files

Author: hoodmane

.github/CODEOWNERS

@@ -172,8 +172,12 @@ Lib/_osx_support.py           @python/macos-team
 Lib/test/test__osx_support.py @python/macos-team
 
 # WebAssembly (Emscripten)
-Platforms/emscripten          @freakboy3742 @emmatyping
-Tools/wasm/emscripten         @freakboy3742 @emmatyping
+Platforms/emscripten          @freakboy3742 @emmatyping @hoodmane
+Tools/wasm/emscripten         @freakboy3742 @emmatyping @hoodmane
+Python/wasm_trampoline.c      @hoodmane
+Python/emscripten_signal.c    @hoodmane
+Python/emscripten_syscalls.c  @hoodmane
+.github/workflows/reusable-emscripten.yml @hoodmane
 
 # WebAssembly (WASI)
 Platforms/WASI                @brettcannon @emmatyping @savannahostrowski