Update README.md

Author: Bernard Pietraga

README.md

@@ -1,8 +1,12 @@
-#programming_elixir_book_exercises
+# solved_programming_elixir
 
 Here are my solutions for exercises from an amazing book called
 ["Programming Elixir"](https://pragprog.com/book/elixir/programming-elixir)
 by [Dave Thomas](https://github.com/pragdave).
 
 I'm using [Elixir Style Guide](https://github.com/christopheradams/elixir_style_guide)
 suggestions here.
+
+The folders contain exercises for each chapter with tasks to be done.
+
+Most of exercises have ExUnit tests. Just run script via `elixir example_script.exs` to see results.