docs(module): fix list of bullet points not rendering

Looks like f6687ad didn't fully fix things, based on looking at https://bazel.build/external/module today:

<img width="907" alt="Screenshot 2024-10-15 at 1 13 37 PM" src="https://github.com/user-attachments/assets/800487d4-0845-418d-8042-bd2c4bad017c">

Closes #23985.

PiperOrigin-RevId: 691071540
Change-Id: Ic474af8308843314aaeaaa85a40dfc487cf7efca

site/en/external/module.md

@@ -206,6 +206,7 @@ multiple versions of the module in the entire dependency graph (see
 Note that **the canonical name format** is not an API you should depend on and
 **is subject to change at any time**. Instead of hard-coding the canonical name,
 use a supported way to get it directly from Bazel:
+
 *    In BUILD and `.bzl` files, use
      [`Label.repo_name`](/rules/lib/builtins/Label#repo_name) on a `Label` instance
      constructed from a label string given by the apparent name of the repo, e.g.,