sway: write README.md for both directories

Resolves: #132

conf/sway/README.md

@@ -0,0 +1,5 @@
+# Sway configuration
+
+This is my `~/.config/sway/config`, and `…config.d/`. The main config contains
+thinks that I have felt as essential or otherwise felt like putting there,
+but as I love include directives, a lot is in the config.d.

conf/sway/config

@@ -22,8 +22,8 @@ set $menu bemenu-run | xargs swaymsg exec --
 
 # Screen lock command
 # -c, colour, -F showing failed attempts, -k keyboard layout display,
-# -l, caps lock idnicator
-set $ScreenLockCmd swaylock -c 000000 -F -k -l
+# -l, caps lock idnicator, -f fork (required by swayidle)
+set $ScreenLockCmd swaylock -c 000000 -F -k -l -f
 
 # Preferred graphical text editor
 set $TEXTEDITOR pluma

conf/sway/config.d/README.md

@@ -0,0 +1,27 @@
+# More sway configuration
+
+`~/.config/sway/config.d/` where `*.conf` is included by my sway config.
+Thus this `README.md` is not read, even if I happened to carelessly
+copy-paste it in.
+
+* `autostart-communication.conf` - chat/communication apps I am expected to have
+  open or at least check at times
+* `autostart-fineid.conf` - Finnish electric identity card, that I also use as SSH key
+* `autostart-utilities.conf` - general utilities, like `nm-applet` or VPN etc.
+* `grimshot.conf` - screenshotting keybinds using `grimshot`
+* `i3-selenized-dark.conf` - selenized dark colour scheme
+* `keyboard.conf` - keyboard configuration
+* `media.conf` - media key configuration and autostarts related to it
+* `pointer-accel.conf` - pointer/mouse configuration, mainly setting acceleration
+  profile to `flat`
+* `README.md` - you are currently reading this :wink:
+* `sedric.conf` - configuration specific to my laptop hostnamed `sedric`
+* `swaybar.conf` - `swaybar` configuration
+* `swayidle.conf` - `swayidle` configuration/autostart
+* `wlsunset-kotka.conf` - `wlsunset` configuration/autostart for my hometown for when
+  I happen to visit for longer period of time
+* `wlsunset-lauttasaari.conf` - `wlsunset` configuration for my home neighbourhood
+* `zz-floating.conf` - configures windows that should float. For some reason
+  that is inherited from my `i3` config, it tells to put float rules above the
+  last line, so it should be read last and `z` is the last letter of English
+  alphabet so it will hopefully be read last.

conf/sway/config.d/swayidle.conf

@@ -0,0 +1,11 @@
+# Copied from `man swayidle`, except the $ScreenLockCmd that I don't
+# want to repeat.
+#  This will lock your screen after 300 seconds of inactivity, then turn off
+#  your displays after another 300 seconds, and turn your screens back on
+#  when resumed. It will also lock your screen before your computer goes to
+#  sleep.
+exec swayidle -w \
+     timeout 300 "\"$ScreenLockCmd\"" \
+     timeout 600 'swaymsg "output * dpms off"' \
+          resume 'swaymsg "output * dpms on"' \
+     before-sleep "\"$ScreenLockCmd\""