feat(i18n): finish zh-CN example comments and align Strapping term with the glossary

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

public/exemplos/zh-CN/micropython.py

@@ -1,11 +1,11 @@
 from machine import Pin
 from time import sleep
 
-# Define o pino 2 como saída (geralmente o LED embutido)
+# 将引脚 2 定义为输出（通常是板载 LED）
 led = Pin(2, Pin.OUT)
 
 while True:
-    led.value(1)  # Liga o LED
-    sleep(0.5)    # Aguarda 0,5 segundos
-    led.value(0)  # Desliga o LED
-    sleep(0.5)    # Aguarda 0,5 segundos
+    led.value(1)  # 点亮 LED
+    sleep(0.5)    # 等待 0.5 秒
+    led.value(0)  # 关闭 LED
+    sleep(0.5)    # 等待 0.5 秒