README.md in potassium-1.3.3 vs README.md in potassium-1.3.4

@@ -2,20 +2,34 @@
 
 A Rails application generator from [Platanus](https://github.com/platanus), inspired by [Suspenders](https://github.com/thoughtbot/suspenders).
 
 ## Installation
 
-Just install it globally:
+First, be sure to have Rails 4.2+ installed on your system.
 
+Then, install Potassium globally:
+
     $ gem install potassium
 
 ## Usage
 
-Use the `potassium` command to create a new project:
+### Starting a new project from scratch
 
+Use the `potassium create` command to create a new project:
+
     $ potassium create project-name
 
 It's important to note that it will perform a version check before running to ensure that you're using the latest potassium.
+
+### Adding recipes to an existing project
+
+Use the `potassium install` command to add a recipe to a project:
+
+    $ potassium install i18n
+
+You can run the command on its own to view all the available recipes and select one:
+
+    $ potassium install
 
 ## What's inside Potassium?
 
 Potassium Rails apps includes the following gems and technologies: