Pfad zum Logo in der Readme angepasst

README.md

@@ -5,7 +5,7 @@
 ![GitHub contributors](https://img.shields.io/github/contributors/marlinfirmware/marlin.svg)
 ![GitHub Release Date](https://img.shields.io/github/release-date/marlinfirmware/marlin.svg)
 
-<img align="top" width=175 src="../../raw/master/buildroot/share/pixmaps/logo/marlin-250.png" />
+<img align="top" width=175 src="/raw/master/buildroot/share/pixmaps/logo/marlin-250.png" />
 
 Additional documentation can be found at the [Marlin Home Page](http://marlinfw.org/).
 Please test this firmware and let us know if it misbehaves in any way. Volunteers are standing by!