docs: README and getting started provide command for latest version

Author: kkostov

README.md

@@ -28,9 +28,10 @@ Blogatto generates your entire static site from a single configuration: blog pos
 
 ## Installation
 
+Blogatto is available on [Hex](https://hex.pm/packages/blogatto). Add it as a dependency to your project:
+
 ```sh
-gleam add blogatto@3
-gleam add lustre@5
+gleam add blogatto
 ```
 
 ## Quick start

docs/getting-started.md

@@ -15,10 +15,11 @@ This guide walks you through installing Blogatto and building your first static
 
 ## Installation
 
-Add Blogatto to your Gleam project:
+Blogatto is available on [Hex](https://hex.pm/packages/blogatto). Add it as a dependency to your project:
+
 
 ```sh
-gleam add blogatto@3
+gleam add blogatto
 ```
 
 ## Project structure