updated readme

README.md

@@ -15,14 +15,16 @@ opam install dune
 
 That's it. To run the `main.ml` file type
 ```
-dune exec bin/main.exe max_depth simultaneous dot term_str
+dune exec bin/main.exe max_depth term_str
 ```
 
 - max_depth: is the max number of compositions in the computation of the legal paths
-- simultaneous: `true` or `false`, denotes whether simultaneous substitution is applied
-- dot: `true` or `false`, denotes whether you want to generate a dot file
 - term_str: is a term in quotes in the format `UT = (UT) | /x ... y.UT | UT ... UT | x`, e.g. `"(/x.x z) y"`
 
+## Web Tool
+
+You can also take a look at the web tool: [http://195.201.17.253:5050/](http://195.201.17.253:5050/)
+
 ## Library
 
 The `lib` folder contains the source code.