Read edge list doc

src/graph.rs

@@ -1369,7 +1369,15 @@ impl PyGraph {
     ///       fd.flush()
     ///       graph = rx.PyGraph.read_edge_list(path=path)
     ///   mpl_draw(graph)
-    ///
+    ///   
+    /// For example for csv based data, you may use the below code
+    /// 
+    ///     graph = rx.PyGraph.read_edge_list(path=file, deliminator=",")
+    /// 
+    /// Data with labels for nodes
+    /// 
+    ///     graph = rx.PyGraph.read_edge_list(path=file, deliminator=",",labels=True)
+    /// 
     #[staticmethod]
     #[pyo3(signature=(path, comment=None, deliminator=None, labels=false),  text_signature = "(path, /, comment=None, deliminator=None, labels=False)")]
     pub fn read_edge_list(