Update README

README.md

@@ -4,8 +4,8 @@
 
 wdisplays is a graphical application for configuring displays in Wayland
 compositors. It borrows some code from [kanshi]. It should work in any
-compositor that implements the wlr-output-management-unstable-v1 protocol, such
-as [sway].
+compositor that implements the wlr-output-management-unstable-v1 protocol,
+including [sway].
 
 ![Screenshot](wdisplays.png)
 
@@ -23,5 +23,26 @@ ninja -C build
 sudo ninja -C build install
 ```
 
+# FAQ (Fervently Anticpiated Quandaries)
+
+### What is this?
+
+It's intended to be the Wayland equivalent of an xrandr GUI, like [ARandR].
+
+### Help, I get errors and/or crashes!
+
+Make sure your wlroots and sway are up-to-date. Particularly, you need a git
+revision of wlroots from [this commit](https://github.com/swaywm/wlroots/commit/724b5e1b8d742a8429f4431ae1a55d7d26cb92ae)
+(or later) or your compositor may crash when adding/removing displays.
+Alternatively, you can try to disable the "Show Screen Contents" option.
+
+### I'm using Sway, why aren't my display settings saved when I log out?
+
+Sway, like i3, doesn't save any settings unless you put them in the config
+file. See man `sway-output`. If you want to have multiple configurations
+depending on the monitors connected, you'll need to use an external program
+like [kanshi].
+
 [kanshi]: https://github.com/emersion/kanshi
 [sway]: https://github.com/swaywm/sway
+[ARandR]: https://christian.amsuess.com/tools/arandr/