add note about SPI

Author: kattouf

README.md

@@ -7,12 +7,13 @@ This crate provides a driver for the ST7567S display controller that can be used
 
 # Features
 
-- Supports I2C and SPI communication protocols via the [`display_interface`](https://docs.rs/display_interface) crate.
+- Supports I2C and SPI communication protocols via the [`display_interface`](https://docs.rs/display_interface) crate. 
 - Provides two display modes:
   - Internal Buffer Mode: This mode allows you to modify an internal buffer by using methods like `set_pixel`, `clear`, or by using the [`embedded-graphics`](https://docs.rs/embedded-graphics) crate. Once you have made your changes, you can call the `flush` method to write the buffer to the display.
   - Direct Write Mode: This mode allows you to write directly to the display memory by calling the `draw` method.
 
-**Note**: This driver is designed to work with a more generic 128x64 resolution, instead of the original 132x65 resolution of the ST7567S controller.
+**Note**: This driver is designed to work with a more generic 128x64 resolution, instead of the original 132x65 resolution of the ST7567S controller.  
+**Note**: SPI communication is not tested yet.
 
 Thanks [`ssd1306`](https://github.com/jamwaffles/ssd1306) driver for served as an example.
 

src/lib.rs

@@ -1,4 +1,4 @@
-//! ST7567S Display Controller Driver
+//! # ST7567S Display Controller Driver
 //!
 //! This crate provides a driver for the ST7567S display controller that can be used with Rust embedded projects.
 //!
@@ -16,6 +16,7 @@
 //! [`draw`]: crate::display::ST7567S#method.draw
 //!
 //! **Note**: This driver is designed to work with a more generic 128x64 resolution, instead of the original 132x65 resolution of the ST7567S controller.
+//! **Note**: SPI communication is not tested yet.
 
 #![no_std]