Merge pull request #20 from mongodb-developer/fix-indentation

A space was breaking the correct Markdown rendering

Author: Pash10g

docs/intro.mdx

@@ -99,7 +99,7 @@ This allows you to focus on the content relevant to your deployment type while u
 
 Regardless of your deployment type, always:
 
- 1. **Network security**
+1. **Network security**
    - Restrict network access.
    - Use TLS/SSL encryption.
    - Implement proper firewall rules.