Update system.md

mrzResearchArena · web-flow · commit 819b6147b8d4 · 2022-08-22T02:18:57.000+06:00
diff --git a/system.md b/system.md
@@ -104,3 +104,6 @@ sleep 10 # Pause for 10 seconds
 nmcli radio wifi on
 echo 'Wi-Fi will turn on after a few seconds.'
 ```
+
+### 11. Battery Timing
+https://askubuntu.com/questions/69556/how-do-i-check-the-batterys-status-via-the-terminal
