打开App Store 点按搜索。 点按屏幕顶端的搜索栏。 搜索“Documents 6”应用。 点按“Documents by Readdle”。 点按应用名称右边的获取。 出现提示时，输入你的触控ID，Documents 6会开始下载到iPad。 按下iPad表面上圆形的主屏幕按钮。

Given the above summary, write a detailed text in English for it.
Tap the App Store app icon, which resembles a blue box with a white "A" on it. It's in the bottom-right corner of the screen on most iPads, though you may need to tap a search bar in the upper-right corner of the screen instead. This is at the top of the screen. If you initially tapped a search bar instead of the Search option, skip this step. Type in documents 6 and then tap Search in your iPad's keyboard. It should be near the top of the results page; this app has a multicolored "D" next to it. It's to the right of the app's title. Doing so will prompt Documents 6 to begin downloading onto your iPad. If you don't use Touch ID on your iPad, enter your Apple ID password when prompted, then tap Install. It's the round button on the face of your iPad. This will minimize the App Store app, allowing you to proceed with opening another app.