Fixing Broken Links 11/25 (#3641)

Fixing broken links for Nov 25. Issue #3640

Author: sekyondaMeta

CONTRIBUTING.md

@@ -356,11 +356,11 @@ Submit the changes as a PR to the main branch of
 1. Address all feedback comments from your reviewers.
 1. Make sure all CI checks are passing.
 
-Once you submit your PR, you can see a generated Netlify preview of your
-build. You can see an example Netlify preview at the following URL:
-
->  <https://deploy-preview-954--pytorch-tutorials-preview.netlify.app/>
-
+Once you submit your PR, you can see a preview of your
+build, titled "Preview Python docs built from this PR", under Helpful Links.
+This preview will show you how your tutorial will appear on the website,
+but it is not the final version. The final version will be published
+after the PR is merged.
 
 ## Do not merge the PR yourself ##
 

beginner_source/audio_io_tutorial.rst

@@ -12,6 +12,7 @@
     "beginner/hybrid_frontend/learning_hybrid_frontend_through_example_tutorial.html": "../../index.html",
     "beginner/flava_finetuning_tutorial.html": "../index.html",
     "beginner/ptcheat.html": "../index.html",
+    "beginner/audio_io_tutorial.html": "../index.html",
     "intermediate/FSDP_adavnced_tutorial.html": "https://docs.pytorch.org/tutorials/intermediate/FSDP_advanced_tutorial.html",
     "intermediate/dynamic_quantization_bert_tutorial.html": "../index.html",
     "intermediate/flask_rest_api_tutorial": "../index.html",