[metrics] fix: links in main index.md

docs/index.md

@@ -22,19 +22,19 @@ Through SPARQL queries, we explore:
 
 Our queries are organized into three main categories.
 
-[**1. Basic Examples**](/examples)
+[**1. Basic Examples**](examples)
 
    - Common query patterns
    - Graph exploration basics
    - Getting started guides
 
-[**2. Domain Questions**](/questions)
+[**2. Domain Questions**](questions)
 
    - Domain-specific research questions
    - Real-world use cases
    - Complex query patterns
 
-[**3. Graph Metrics**](/metrics)
+[**3. Graph Metrics**](metrics)
 
    - Structural metrics
    - Quality analysis