Update readme regarding builds without Flatpak, moves from Android etc.

README.md

@@ -29,13 +29,13 @@ flatpak-builder builddir --install-deps-from=flathub --user --install --force-cl
 flatpak run app.briar.gtk
 ```
 
-You should also be able to run Briar GTK without Flatpak.
+Additionally, you are able to run Briar GTK without Flatpak.
 For this, you have to install Java, the
-[Python dependencies](requirements.txt) and Briar Headless.
-Once you've done this, change the path of the Briar Headless
+[Python dependencies](requirements.txt) and
+[Briar headless](https://code.briarproject.org/briar/briar/blob/master/briar-headless/README.md).
+Once you've done this, change the path of the Briar headless
 jar in [src/briar/gtk/define.py](src/briar/gtk/define.py),
 build it with _meson_ and start Briar GTK.
-Keep in mind this wasn't tested so far.
 
 ## Design Goals
 
@@ -49,12 +49,10 @@ Keep in mind this wasn't tested so far.
 
 ## FAQ
 
-### How can I add contacts?
+### How can I transfer contacts from my Android device?
 
-Adding contacts isn't yet supported. Instead, you have to copy
-the database and keys from a Briar Android installation. The most
-convenient way to do so is by using
-[_adb_](https://developer.android.com/studio/command-line/adb).
+By using [_adb_](https://developer.android.com/studio/command-line/adb),
+you can copy the database and keys from a Briar Android installation.
 Note that your smartphone needs to be rooted for this.
 
 You can either use the script at 

[Torsten Grote]

Maybe add the warning from this thread here: briar#110 (comment 34386)

[Torsten Grote]

Also the paragraph is not really about transferring contacts, but migrating the briar account from phone to desktop which isn't officially supported.

The official way to transfer contacts is to add the desktop account with your phone and then introduce the contacts to the desktop account.