adb-logcat, logcat: add --pid examples (#9893)

pages/common/adb-logcat.md

@@ -23,6 +23,14 @@
 
 `adb logcat *:W`
 
+- Display logs for a specific PID:
+
+`adb logcat --pid={{pid}}`
+
+- Display logs for the process of a specific package:
+
+`adb logcat --pid=$(adb shell pidof -s {{package}})`
+
 - Color the log (usually use with filters):
 
 `adb logcat -v color`