📚 docs(README): Fix header image URL.

make-github-pseudonymous-again · make-github-pseudonymous-again · commit dbbd1e6065c4 · 2021-07-15T15:35:25.000+02:00
diff --git a/README.md b/README.md
@@ -2,7 +2,7 @@
 ==
 
 <p align="center">
-<img src="https://cdn.rawgit.com/binary-search-tree/red-black-tree/main/media/sketch.svg" width="480">
+<img src="https://raw.githubusercontent.com/binary-search-tree/red-black-tree/main/media/sketch.svg" width="480">
 </p>
 
 ```js

-Original file line number
+Diff line change
 ==
 <p align="center">
 -<img src="https://cdn.rawgit.com/binary-search-tree/red-black-tree/main/media/sketch.svg" width="480">
 +<img src="https://raw.github.com/binary-search-tree/red-black-tree/main/media/sketch.svg" width="480">
 </p>
 ```js