README - Update

Image address updates

[ROCm/rocdecode commit: 203bd98ccd]

projects/rocdecode/README.md

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 [![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](https://opensource.org/licenses/MIT)
 
 
-<p align="center"><img width="70%" src="https://raw.githubusercontent.com/ROCm/rocDecode/master/docs/data/AMD_rocDecode_Logo.png" /></p>
+<p align="center"><img width="70%" src="docs/data/AMD_rocDecode_Logo.png" /></p>
 
 rocDecode is a high performance video decode SDK for AMD GPUs. rocDecode API lets developers access the video decoding features available on the GPU.