3931.bugfix.rst / add double backticks and trailing new line
-Prefer credentials from the URL over the previously-obtained credentials from URLs of the same domain, so it is possible to use different credentials on the same index server for different `--extra-index-url` options.
\ No newline at end of file
+Prefer credentials from the URL over the previously-obtained credentials from URLs of the same domain, so it is possible to use different credentials on the same index server for different ``--extra-index-url`` options.
+
