Add Steps for Installing and Configuring TFT_eSPI Library

[Ehsan-Nezami]

Hi, I noticed that there isn't a clear explanation for setting up the display configuration, so I wanted to share some steps that might help others:

Step 1: Install the Required Library

To display the configuration correctly, you'll need to install the TFT_eSPI library.

Option 1: Install via Arduino Library Manager

1. Open Arduino IDE.
2. Go to Sketch > Include Library > Manage Libraries.
3. In the Library Manager, type "TFT_eSPI" in the search box.
4. Find TFT_eSPI by Bodmer in the list, then click Install.

Step 2: Configure the Library

To configure it for this project, you'll need to modify two files:

1. User_Setup.h:
Comment out the following line:

#define ILI9341_DRIVER  // Generic driver for common displays

2. User_Setup_Select.h:
Uncomment the following line:

#include <User_Setups/Setup25_TTGO_T_Display.h>  // Setup file for ESP32 and TTGO T-Display ST7789V SPI bus TFT