Clean up some warnings from 'cargo doc'

src/epd2in13bc/mod.rs

@@ -1,5 +1,5 @@
 //! A simple Driver for the Waveshare 2.13" (B/C) E-Ink Display via SPI
-//! More information on this display can be found at the [Waveshare Wiki]:(https://www.waveshare.com/wiki/2.13inch_e-Paper_HAT_(B))
+//! More information on this display can be found at the [Waveshare Wiki](https://www.waveshare.com/wiki/2.13inch_e-Paper_HAT_(B))
 //! This driver was build and tested for 212x104, 2.13inch E-Ink display HAT for Raspberry Pi, three-color, SPI interface
 //!
 //! # Example for the 2.13" E-Ink Display

src/epd2in9_v2/mod.rs

@@ -1,6 +1,6 @@
 //! A simple Driver for the Waveshare 2.9" E-Ink Display V2 via SPI
 //!
-//! Specification: https://www.waveshare.com/w/upload/7/79/2.9inch-e-paper-v2-specification.pdf
+//! Specification: <https://www.waveshare.com/w/upload/7/79/2.9inch-e-paper-v2-specification.pdf>
 //!
 //! # Example for the 2.9 in E-Ink Display V2
 //!

src/lib.rs

@@ -109,9 +109,9 @@ pub mod prelude {
 ///  unused
 ///  bits        width
 /// <----><------------------------>
-/// [XXXXX210][76543210]...[76543210] ^
-/// [XXXXX210][76543210]...[76543210] | height
-/// [XXXXX210][76543210]...[76543210] v
+/// \[XXXXX210\]\[76543210\]...\[76543210\] ^
+/// \[XXXXX210\]\[76543210\]...\[76543210\] | height
+/// \[XXXXX210\]\[76543210\]...\[76543210\] v
 pub const fn buffer_len(width: usize, height: usize) -> usize {
     (width + 7) / 8 * height
 }