1-prep & 2-common: Clean README.adoc intro docs

roles/1-prep/README.adoc

@@ -15,14 +15,12 @@ username and group, to log into Admin Console
 /var/log subdirs on each boot
 * *_Hardware actions:_*
   ** link:tasks/install-expand-rootfs.yml[*_install-expand-rootfs.yml_*]:
-    *** Install packages parted and cloud-guest-utils (for growpart)
+    *** Install https://en.wikipedia.org/wiki/APT_(software)[apt] packages parted (reveals last partition) and cloud-guest-utils (for growpart)
     *** Install link:templates/iiab-expand-rootfs[/usr/sbin/iiab-expand-rootfs] that acts on flag flag `/.expand-rootfs`
     *** Enable iiab-expand-rootfs.service so this can happen during any future boot-up
   ** link:tasks/raspberry_pi.yml[*_raspberry_pi.yml_*]:
     *** RTC (real-time clock): install udev rule, configure, enable
-    *** *_Install packages:_*
-      **** dphys-swapfile (for swapfile)
-      **** fake-hwclock (as RTC is often missing or dead!)
+    *** Install apt packages fake-hwclock (as above RTC is often missing or dead!) and dphys-swapfile (for swap file below)
     *** Increase swap file size (to `pi_swap_file_size`)
   ** NUC 6 Wi-Fi firmware
   ** Check for WiFi devices (if so, set `has_wifi_device`)

roles/2-common/README.adoc

@@ -9,10 +9,8 @@ https://internet-in-a-box.org/[Internet-in-a-Box (IIAB)] server.
 These are (partially) put in place:
 
 * IIAB directory structure (link:tasks/fl.yml[file layout])
-* Common https://en.wikipedia.org/wiki/APT_(software)[apt] software
-packages
-* Networking (including the
-https://en.wikipedia.org/wiki/Iptables[iptables] firewall)
+* Common https://en.wikipedia.org/wiki/APT_(software)[apt] software packages
+* Networking apt packages (including many WiFi tools, and also iptables-persistent for the https://en.wikipedia.org/wiki/Iptables[iptables] firewall)
 * link:tasks/iiab-startup.yml[/usr/libexec/iiab-startup.sh] similar to
 AUTOEXEC.BAT and /etc/rc.local, in order to run jobs on boot