Sorry, today I haven't docs, because I lost it. In a few weeks I want to start repair demo part for this and docs.
You can do like in my docs for google maps.
Open in admin panel component.
Create placemarks and assign to map.
Create menu item Map, and select map to display.
Baidu extension in JED is the last, you can use it. The main thing - you have to enter your map key, because your Baidu Map API required it.
I will very appreciate you if you tell me some other requirements. As you can see current version is too little, because I haven't feed back from users, who uses it, and therefore don't add more development features to it. But I definitely want to support this development.