Added notes on WiFi network prioritization in KDE

knowledge base/kde.md

@@ -13,6 +13,10 @@ kwriteconfig5 --file kdeglobals --group 'KFileDialog Settings' \
   --key 'Show hidden files' --type bool true
 ```
 
+## Prioritize a WiFi network connection
+
+Plasma-nm lets you change a network's priority specifying a number in the network's _General configuration_ tab. Higher numbers set a higher priority.
+
 ## Further readings
 
 - [KDE Configuration Files]

knowledge base/network manager.md

@@ -0,0 +1,21 @@
+# Network Manager
+
+## TL;DR
+
+```sh
+# Get all settings of a connection.
+nmcli connection show 'Wired connection 1'
+
+# Change the autoconnect priority setting of a connection.
+# Higher numbers set a higher priority.
+nmcli connection modify 'it hurts when ip' connection.autoconnect-priority 1
+
+# Start the TUI.
+nmtui
+```
+
+## Sources
+
+- [nm-settings]
+
+[nm-settings]: https://people.freedesktop.org/~lkundrak/nm-docs/nm-settings.html