Merge pull request #101 from jmorganca/adding-logo

add logo

README.md

@@ -1,4 +1,9 @@
-![ollama](https://github.com/jmorganca/ollama/assets/251292/961f99bb-251a-4eec-897d-1ba99997ad0f)
+<div align="center">
+  <picture>
+    <source media="(prefers-color-scheme: dark)" height="200px" srcset="https://github.com/jmorganca/ollama/assets/3325447/318048d2-b2dd-459c-925a-ac8449d5f02c">
+    <img alt="logo" height="200px" src="https://github.com/jmorganca/ollama/assets/3325447/c7d6e15f-7f4d-4776-b568-c084afa297c2">
+  </picture>
+</div>
 
 # Ollama