fix link to REWG logo

closes #523

Author: BartMassey

README.md

@@ -4,7 +4,7 @@
 
 This is a curated list of resources related to embedded and low-level programming in the Rust programming language, including a selection of useful crates.
 
-[<img src="https://rawgit.com/rust-embedded/awesome-embedded-rust/master/rust-embedded-logo-256x256.png" alt="Rust Embedded Logo" align="right" width="256">](http://www.rust-embedded.org)
+[<img src="rust-embedded-logo-256x256.png" alt="Rust Embedded Logo" align="right" width="256">](http://www.rust-embedded.org)
 
 This project is developed and maintained by the [Resources team][team].