Update main.rs

src/main.rs

@@ -50,7 +50,7 @@ fn add_child(element: u64, child: u64, matriz: &mut AdyacenceMatrix){
 
 
 fn render_graph(graph: Vec<BasicBlock>, block_options: String) {
-    println!("digrap demo_program {{");
+    println!("digraph demo_program {{");
     println!("    {}",block_options);
     let mut i=0;
     let len=graph.len();