docs: badges

Author: sntran

README.md

@@ -1,6 +1,8 @@
 # gen_nntp
 
 [![CI](https://github.com/sntran/gen_nntp/actions/workflows/elixir.yml/badge.svg)](https://github.com/sntran/gen_nntp/actions/workflows/elixir.yml)
+[![Hex Version](https://img.shields.io/hexpm/v/gen_nntp.svg)](https://hex.pm/packages/gen_nntp)
+[![License](https://img.shields.io/github/license/sntran/gen_nntp.svg)](https://choosealicense.com/licenses/apache-2.0/)
 
 The Erlang NNTP client and server library.
 
@@ -12,7 +14,7 @@ by adding `gen_nntp` to your list of dependencies in `mix.exs`:
 ```elixir
 def deps do
   [
-    {:gen_nntp, "~> 0.1.0"}
+    {:gen_nntp, "~> 0.18.0"}
   ]
 end
 ```