Fix typo in quantize.py (#1434)

Typos

Author: mikekgfb

torchchat/utils/quantize.py

@@ -844,7 +844,7 @@ def quantized_model(self) -> nn.Module:
         torch.ops.load_library(libpath)
         print("Loaded torchao mps ops.")
     except Exception as e:
-        print("Unabled to load torchao mps ops library.")
+        print("Unable to load torchao mps ops library.")
 
 except Exception as e:
     print("Unabled to import torchao experimental quant_api with error: ", e)