Updated comment section in SDMMC_Test.ino

Author: PilnyTomas

Diff for: libraries/SD_MMC/examples/SDMMC_Test/SDMMC_Test.ino

@@ -42,13 +42,13 @@
 
 #if defined(SOC_SDMMC_USE_GPIO_MATRIX) && not defined(BOARD_HAS_SDMMC)
     int d1  = 21; // SD pin 8 - Add a 10k Ohm pull-up resistor to 3.3V if using 4-bit mode (use_1_bit_mode = false)
-    int d0  = 47; // SD pin 7 - Add a 10k Ohm pull-up resistor
+    int d0  = 47; // SD pin 7 - Add a 10k Ohm pull-up resistor to 3.3V
     //     GND pin - SD pin 6
-    int clk = 39; // SD pin 5 - Add a 10k Ohm pull-up resistor
+    int clk = 39; // SD pin 5 - Add a 10k Ohm pull-up resistor to 3.3V
     //    3.3V pin - SD pin 4
     //     GND pin - SD pin 3
-    int cmd = 40; // SD pin 2 - Add a 10k Ohm pull-up resistor
-    int d3  = 41; // SD pin 1 - Add a 10k Ohm pull-up resistor to card's pin even when using 1-bit mode
+    int cmd = 40; // SD pin 2 - Add a 10k Ohm pull-up resistor to 3.3V
+    int d3  = 41; // SD pin 1 - Add a 10k Ohm pull-up resistor to 3.3V to card's pin even when using 1-bit mode
     int d2  = 42; // SD pin 9 - Add a 10k Ohm pull-up resistor to 3.3V if using 4-bit mode (use_1_bit_mode = false)
 #endif