Update tests readme regarding the Emscripten build.

tests/_build/README.md

@@ -11,9 +11,9 @@ Output files will be placed in the "res/output" folder.
 Emscripten
 ----------
 On Windows, you need to move into the build and run emsdk_env.bat from a command prompt using an absolute
-path like "C:\emsdk\emsdk_env.bat". Note that PowerShell doesn't work for me for some reason. Examples:
+path like "C:\emsdk\emsdk_env.bat". Note that PowerShell doesn't work for me for some reason. Example:
 
-    emcc ../test_emscripten/ma_test_emscripten.c -o bin/test_emscripten.html-sAUDIO_WORKLET=1 -sWASM_WORKERS=1 -sASYNCIFY -DMA_ENABLE_AUDIO_WORKLETS -Wall -Wextra
+    emcc ../test_emscripten/ma_test_emscripten.c -o bin/test_emscripten.html -sAUDIO_WORKLET=1 -sWASM_WORKERS=1 -sASYNCIFY -DMA_ENABLE_AUDIO_WORKLETS -Wall -Wextra
     
 If you output WASM it may not work when running the web page locally. To test you can run with something
 like this: