initial working version

Cargo.toml

@@ -2,14 +2,28 @@
 name = "levtree"
 version = "0.1.0"
 authors = ["Walter Oggioni <oggioni.walter@gmail.com>"]
+license = "MIT"
+rust-version = "1.60"
 
 [dependencies]
+trait-group = "0.1.0"
+sealed = "0.5"
+
+[lib]
+name = "levtree"
+crate-type = ["lib"]
+bench = false
+path = "src/levtree/mod.rs"
 
 [[bin]]
 name = "linked_list"
 path = "src/linked_list.rs"
 
+[[example]]
+name = "levtree_example"
+path = "examples/levtree_example.rs"
+
 [[bin]]
-name = "levtree"
-#path = "src/test.rs"
-path = "src/main.rs"
+name = "test"
+path = "src/test.rs"
+