Auto-fix Markdown files

rules/key-principles-of-rest-api-design/rule.md

@@ -49,6 +49,7 @@ Introduce versioning from the start (e.g., `/v1/resource`) to maintain backward
 Versioning helps users manage changes without breaking existing implementations, allowing them to adopt new features gradually.  
 
 There are 3 common ways to implement versioning:  
+
 * Route  
 * Query String  
 * Header