Update versions to 3.0

Author: NelsonVides

README.md

@@ -11,15 +11,15 @@ It can be used as a `rebar3` dependency:
 
 ```erlang
 {deps, [
-    {amoc, "3.0.0-rc1"}
+    {amoc, "3.0.0"}
 ]}.
 ```
 
 or in `mix`:
 ```elixir
 defp deps() do
   [
-    {:amoc, "~> 3.0.0-rc1"}
+    {:amoc, "~> 3.0"}
   ]
 end
 ```

guides/amoc_livebook.livemd

@@ -6,7 +6,7 @@ Mix.install([
   {:jiffy, "~> 1.1"},
   {:gen_state_machine, "~> 2.0"},
   {:uuid, "~> 1.1"},
-  {:amoc, git: "https://github.com/esl/amoc.git", branch: "master"},
+  {:amoc, "~> 3.0"},
   {:kino, "~> 0.11.3"},
   {:vega_lite, "~> 0.1.6"},
   {:kino_vega_lite, "~> 0.1.10"},