[skip ci]Update README.md

Author: kzscisoft

README.md

@@ -91,7 +91,7 @@ if __name__ == "__main__":
             ...
 
             # Send metrics inside main application loop
-            run.log({'loss': 0.5, 'density': 34.4})
+            run.log_metrics({'loss': 0.5, 'density': 34.4})
 
             ...