[Docs][Bug] Fix broken link to tvmc python (#13499)

Ensure correct link is generated to the next page in the documentation.
Update description to indicate next section introduces Python API, and
the section after that discusses the same material but using Python
rather than the command line interface.

gallery/tutorial/tvmc_command_line_driver.py

@@ -518,6 +518,8 @@
 # To see what other options are available, please have a look at ``tvmc
 # --help``.
 #
-# In the next tutorial, `Compiling and Optimizing a Model with the Python
-# Interface <auto_tuning_with_pyton>`_, we will cover the same compilation
-# and optimization steps using the Python interface.
+# In the `next tutorial <tvmc_python>`, we introduce the Python interface to TVM,
+# and in the tutorial after that,
+# `Compiling and Optimizing a Model with the Python Interface <autotvm_relay_x86>`,
+# we will cover the same compilation and optimization steps using the Python
+# interface.