Better README formatting

README.md

@@ -309,12 +309,13 @@ tree.to_tree()
 
 This creates a [treelib](https://github.com/caesar0301/treelib/blob/master/treelib) which has a `.to_graphviz()` method [here](https://github.com/caesar0301/treelib/blob/master/treelib/tree.py#L865).
 
+
 In order to use visually graph the CHAID tree, you'll need to install two more libraries that aren't distributed via pypi:
 
-graphviz - see [here](https://stackoverflow.com/questions/35064304/runtimeerror-make-sure-the-graphviz-executables-are-on-your-systems-path-aft) for platform specific installations
-orca - see [the README.md](https://github.com/plotly/orca) for platform specific installations
+- graphviz - see [here](https://stackoverflow.com/questions/35064304/runtimeerror-make-sure-the-graphviz-executables-are-on-your-systems-path-aft) for platform specific installations
+- orca - see [the README.md](https://github.com/plotly/orca) for platform specific installations
 
-Alternatively, you can export the tree to .gv and png using:
+You can export the tree to .gv and png using:
 
 ```python
 tree.render(path=None, view=False)