Fix fault in constructor documentation of graph

include/gp-bnb/graph.hpp

@@ -9,7 +9,6 @@ using vertex_id = unsigned int;
 class graph {
 public:    
     /** @brief  Initializes the graph to be partitioned
-     *  @param  Number of vertices
      *  @param  Adjacency lists
      */
     graph(std::vector<std::vector<unsigned int>> a);