Use absolute URLS for images in README.

Images are currently broken in the PyPI README because we used relative URLs. This PR should fix that issue by using absolute URLs.

Author: nrfulton

README.md

@@ -1,4 +1,4 @@
-<img src="docs/mellea_draft_logo_300.png" height=100>
+<img src="https://github.com/generative-computing/mellea/raw/main/docs/mellea_draft_logo_300.png" height=100>
 
 # Mellea
 
@@ -45,7 +45,7 @@ You can get started with a local install, or by using Colab notebooks.
 
 ### Getting Started with Local Infernece
 
-<img src="docs/GetStarted_py.png" style="max-width:800px">
+<img src="https://github.com/generative-computing/mellea/raw/main/docs/GetStarted_py.png" style="max-width:800px">
 
 Install with pip: