[FEATURE REQUEST] Auto Saving and UX changes to avoid data loss

[dwughjsd]

I am using Markor as my primary markdown editor on Android, and one of my favorite feature is that it saves my changes instantly so nothing will be lost even if I kill the app. In fact there are cases that apps are accidentally or unwantedly killed by the system (chinese devices are notorious for killing apps aggressively).

Also I found that the save button only shows for a new note, and all text I wrote will be lost if I performed a back gesture without saving it. I expect new note be saved when I perform a back and no save button is needed, just like most note apps do (most new notes are intended to be saved, so better to save it rather than asking users to explicitly perform the save).

[dwughjsd]

Chinese here:
我之前在Android上主要用Markor编辑markdown文件，其中我觉得最舒服的功能是它总是立即保存所有修改，这样即便我把app结束掉也不会丢数据。国内的手机经常乱杀app，所以软件被不小心或者在不希望被杀的情况下被结束掉并不罕见。

另外我发现只有在写新笔记的时候才会出现保存图标，而如果我按了返回而不是保存的话，不管我写了多少东西都会立即原地消失。我觉得与其使用现在的模式，不如像其他笔记应用那样，干脆不要这个保存按钮，返回即保存就好了（大多数笔记既然会被新建就是要打算保存的，所以与其要求用户一定要点这个保存，不如直接就把它存了）。