bpo-38592 Add pt-br switcher to Python Docs website (GH-16924)



* 📜🤖 Added by blurb_it.
diff --git a/Doc/tools/static/switchers.js b/Doc/tools/static/switchers.js
index ef6f473..e1ef91a 100644
--- a/Doc/tools/static/switchers.js
+++ b/Doc/tools/static/switchers.js
@@ -23,6 +23,7 @@
       'fr': 'French',
       'ja': 'Japanese',
       'ko': 'Korean',
+      'pt-br': 'Brazilian Portuguese',
       'zh-cn': 'Simplified Chinese',
   };