Update prototype_source/max_autotune_on_CPU_tutorial.rst

Co-authored-by: Svetlana Karslioglu <[email protected]>

Author: chunyuan-w

prototype_source/max_autotune_on_CPU_tutorial.rst

@@ -208,7 +208,7 @@ The generated code differs by CPU architecture and is implementation-specific, w
 
 Conclusion
 ------------
-In this tutorial, we introduced max-autotune support on CPU with GEMM template. We explained the API to activate this feature and demonstrated
+In this tutorial, we introduced max-autotune support on CPU with GEMM template. We explained the API to activate this feature, and demonstrated
 the generated code of GEMM template.
 
 This feature is in prototype stage. If you have any feature requests or run into any issues, please file a bug report at `GitHub issues <https://github.com/pytorch/pytorch/issues>`_.