chore: update version to 0.14.0 in readme.md (#242)

# Description
Currently the version in `README.md` is `0.12`, updating that to `0.14`.

Author: girishramnani

README.md

@@ -22,7 +22,7 @@ Add the following to your `mix.exs`:
 
 ```elixir
 def deps do
-  [{:money, "~> 1.12"}]
+  [{:money, "~> 1.14"}]
 end
 ```