Fix URL of photo

Author: wezm

README.md

@@ -5,7 +5,7 @@
 [![crates.io](https://img.shields.io/crates/v/profont.svg)](https://crates.io/crates/profont)
 [![Documentation](https://docs.rs/profont/badge.svg)][crate-docs]
 
-<img src="https://raw.githubusercontent.com/wezm/profont/master/IMG_2198.jpg" width="459" alt="Photo of ProFront on an ePaper display" />
+<img src="https://raw.githubusercontent.com/wezm/profont/master/data/IMG_2198.jpg" width="459" alt="Photo of ProFront on an ePaper display" />
 
 `profont` is licensed under the [MIT license][MIT].