Add roadmap

README.md

@@ -53,3 +53,12 @@ require('SpecSwitcher').setup({
     open_in_new_tab=true
 })
 ```
+
+## Roadmap
+
+### Rewriting path.lua into a pathlib equivalent
+
+Plenary.nvim already creates a path library in lua equivalent to the
+python `Pathlib` library. The plenary.nvim library is still based on
+a string path, and I would like to see a more array based internal
+representation.