Update installation instructions

README.md

@@ -15,7 +15,7 @@ This package allows you to display Flash messages between your views.
 
 Update your `Package.swift` file.
 ```swift
-.package(url: "https://github.com/nodes-vapor/flash.git", from: "2.0.0")
+.package(url: "https://github.com/nodes-vapor/flash.git", from: "3.0.0")
 ```
 
 ## Getting started 🚀
@@ -141,13 +141,11 @@ The below example uses the Vapor 3 [Bootstrap package](https://github.com/nodes-
 
 Add the Flash html to one file and embed it in rest of your views or through a base layout, e.g.: `#embed("alerts")`.
 
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 ## 🏆 Credits
 
 This package is developed and maintained by the Vapor team at [Nodes](https://www.nodesagency.com).
 The package owner for this project is [Brett](https://github.com/brettrtoomey).
 
-
 ## 📄 License
 
 This package is open-sourced software licensed under the [MIT license](http://opensource.org/licenses/MIT)