Update comments in examples

examples/CardInfo/CardInfo.ino

@@ -33,6 +33,7 @@ SdFile root;
 // Adafruit SD shields and modules: pin 10
 // Sparkfun SD shield: pin 8
 // Teensy audio board: pin 10
+// Teensy 3.5 & 3.6 on-board: BUILTIN_SDCARD
 // Wiz820+SD board: pin 4
 // Teensy 2.0: pin 0
 // Teensy++ 2.0: pin 20

examples/Datalogger/Datalogger.ino

@@ -33,6 +33,7 @@
 // Adafruit SD shields and modules: pin 10
 // Sparkfun SD shield: pin 8
 // Teensy audio board: pin 10
+// Teensy 3.5 & 3.6 on-board: BUILTIN_SDCARD
 // Wiz820+SD board: pin 4
 // Teensy 2.0: pin 0
 // Teensy++ 2.0: pin 20

examples/DumpFile/DumpFile.ino

@@ -33,6 +33,7 @@
 // Adafruit SD shields and modules: pin 10
 // Sparkfun SD shield: pin 8
 // Teensy audio board: pin 10
+// Teensy 3.5 & 3.6 on-board: BUILTIN_SDCARD
 // Wiz820+SD board: pin 4
 // Teensy 2.0: pin 0
 // Teensy++ 2.0: pin 20

examples/Files/Files.ino

@@ -27,6 +27,7 @@ File myFile;
 // Adafruit SD shields and modules: pin 10
 // Sparkfun SD shield: pin 8
 // Teensy audio board: pin 10
+// Teensy 3.5 & 3.6 on-board: BUILTIN_SDCARD
 // Wiz820+SD board: pin 4
 // Teensy 2.0: pin 0
 // Teensy++ 2.0: pin 20

examples/ReadWrite/ReadWrite.ino

@@ -28,6 +28,7 @@ File myFile;
 // Adafruit SD shields and modules: pin 10
 // Sparkfun SD shield: pin 8
 // Teensy audio board: pin 10
+// Teensy 3.5 & 3.6 on-board: BUILTIN_SDCARD
 // Wiz820+SD board: pin 4
 // Teensy 2.0: pin 0
 // Teensy++ 2.0: pin 20

examples/listfiles/listfiles.ino

@@ -27,6 +27,7 @@ File root;
 // Adafruit SD shields and modules: pin 10
 // Sparkfun SD shield: pin 8
 // Teensy audio board: pin 10
+// Teensy 3.5 & 3.6 on-board: BUILTIN_SDCARD
 // Wiz820+SD board: pin 4
 // Teensy 2.0: pin 0
 // Teensy++ 2.0: pin 20