Modification of code explanation style in ar_calibration file

README.md

@@ -20,6 +20,7 @@ In the 3-in-1 starter kit, you will find a complete Arduino course to help begin
 ## Update:
 2023-09-20:
 - Delete the description of serial number 14 in the car_assemble file (rechargeable is recommended)
+- Modification of code explanation style in ar_calibration file
 
 2023-09-19:
 - Replace part of the project code link

docs/.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "esbonio.sphinx.confDir": ""
+}

docs/source/basic_project/ar_calibration.rst

@@ -92,18 +92,18 @@ After 5 seconds, the LED will go out and we can wave our hands on the photoresis
 
     .. code-block:: arduino
 
-    const int buzzerPin = 9;
-    const int ledPin = 8;
-    const int photocellPin = A0;  //photoresistor attach to A2
+        const int buzzerPin = 9;
+        const int ledPin = 8;
+        const int photocellPin = A0;  //photoresistor attach to A2
 
-    int lightLow = 1023;
-    int lightHigh = 0;
+        int lightLow = 1023;
+        int lightHigh = 0;
 
-    int sensorValue = 0;        // value read from the sensor
-    int pitch = 0;           // sensor value converted into LED 'bars'
+        int sensorValue = 0;        // value read from the sensor
+        int pitch = 0;           // sensor value converted into LED 'bars'
 
-    unsigned long previousMillis = 0;
-    const long interval = 5000;
+        unsigned long previousMillis = 0;
+        const long interval = 5000;
 
 #. Set up a calibration process in ``setup()``.