readme: cleanup configuration example

README.md

@@ -49,8 +49,6 @@ training:
   log_every_step: 10
   generate_every_step: 5000
   wandb_project: "xlstm"
-  gradient_clipping: "auto"
-  # wandb_project: "lovecraftxlstm"
 
 model:
   num_blocks: 24