chore : better doxygen

include/aidge/graph/GraphView.hpp

@@ -44,10 +44,10 @@ private:
     /// @brief Set of nodes included in the graphview with names
     std::map<std::string, NodePtr> mNodeRegistry;
 
-    /// @brief GraphView inputs
+    /// @brief GraphView inputs IOIndex_t designates the input number
     std::vector<std::pair<NodePtr, IOIndex_t>> mInputNodes;
 
-    /// @brief GraphView outputs
+    /// @brief GraphView outputs IOIndex_t designates the input number
     std::vector<std::pair<NodePtr, IOIndex_t>> mOutputNodes;
 
 public: