fix typo

demo/index.js

@@ -755,7 +755,7 @@ import * as svg2pdf from '../node_modules/svg2pdf.js/dist/svg2pdf.min';
             if (openSheetMusicDisplay.IsReadyToRender()) {
                 openSheetMusicDisplay.render();
             } else {
-                console.log("[OSMD demo] Looses context!"); // TODO not sure that this message is reasonable, renders fine anyways. maybe vexflow context lost?
+                console.log("[OSMD demo] Loses context!"); // TODO not sure that this message is reasonable, renders fine anyways. maybe vexflow context lost?
                 selectSampleOnChange(); // reload sample e.g. after osmd.clear()
             }
             enable();