Update README.md

change logo of MetaGPT

Author: stellaHSR

README.md

@@ -1,7 +1,7 @@
 # MetaGPT: The Multi-Agent Framework
 
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-<a href=""><img src="docs/resources/MetaGPT-logo.jpeg" alt="MetaGPT logo: Enable GPT to work in software company, collaborating to tackle more complex tasks." width="150px"></a>
+<a href=""><img src="docs/resources/MetaGPT-new-log.png" alt="MetaGPT logo: Enable GPT to work in software company, collaborating to tackle more complex tasks." width="150px"></a>
 </p>
 
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