Update build command line examples to be consistent with each other.

examples/build/README.md

 Examples
 --------
-gcc ../simple_playback.c -o bin/simple_playback -ldl -lpthread -lm
-gcc ../simple_playback.c -o bin/simple_playback -ldl -lpthread -lm -Wall -Wextra -Wpedantic -std=c89
+gcc ../simple_playback.c -o bin/simple_playback -ldl -lm -lpthread
+gcc ../simple_playback.c -o bin/simple_playback -ldl -lm -lpthread -Wall -Wextra -Wpedantic -std=c89
     
 Emscripten
 ----------

tests/README.md

@@ -2,7 +2,7 @@ Building
 ========
 Build and run from "_build" directory. Example:
 
-    gcc ../test_deviceio/ma_test_deviceio.c -o bin/test_deviceio -Wall -Wextra -Wpedantic -ldl -lm -lpthread
+    gcc ../test_deviceio/ma_test_deviceio.c -o bin/test_deviceio -ldl -lm -lpthread -Wall -Wextra -Wpedantic -std=c89
     ./bin/test_deviceio
     
 Output files will be placed in the "res/output" folder.