Fix everytime spelling (#1876)

Author: aaronkrohn

docs/api-js.md

@@ -60,10 +60,10 @@ This decorator provides support for letting you customize its behaviour to easil
     export default MyApp;
     ```
 
-2. **Silent sync everytime the app resumes**. Same as 1, except we check for updates, or apply an update if one exists every time the app returns to the foreground after being "backgrounded".
+2. **Silent sync every time the app resumes**. Same as 1, except we check for updates, or apply an update if one exists every time the app returns to the foreground after being "backgrounded".
 
     ```javascript
-    // Sync for updates everytime the app resumes.
+    // Sync for updates every time the app resumes.
     class MyApp extends Component<{}> {}
     MyApp = codePush({ checkFrequency: codePush.CheckFrequency.ON_APP_RESUME, installMode: codePush.InstallMode.ON_NEXT_RESUME })(MyApp);
     export default MyApp;