Fix link in adding to using.

pages/adding.md

@@ -67,7 +67,7 @@ relastToJastAdd.dependsOn ragConnect
 ## Introduced dependencies
 
 RagConnect itself does not introduce dependencies.
-However, depending on the selected protocols (see [compiler options](/using#compiler-options)), additional dependencies are required.
+However, depending on the selected protocols (see [compiler options](using#compiler-options)), additional dependencies are required.
 
 | Protocol | Dependency (Gradle format) | Remarks |
 |-|-|-|