regenerate demo app with Phoenix 1.7

demo/.formatter.exs

@@ -1,5 +1,5 @@
 [
   import_deps: [:phoenix],
-  inputs: ["*.{ex,exs}", "{config,lib,test}/**/*.{ex,exs}"],
-  line_length: 80
+  plugins: [Phoenix.LiveView.HTMLFormatter],
+  inputs: ["*.{heex,ex,exs}", "{config,lib,test}/**/*.{heex,ex,exs}", "storybook/**/*.exs"]
 ]

demo/.gitignore

@@ -19,6 +19,9 @@ erl_crash.dump
 # Also ignore archive artifacts (built via "mix archive.build").
 *.ez
 
+# Temporary files, for example, from tests.
+/tmp/
+
 # Ignore package tarball (built via "mix hex.build").
 demo-*.tar
 

demo/README.md

@@ -3,6 +3,7 @@
 To start your Phoenix server:
 
 - Install dependencies with `mix deps.get`
-- Start Phoenix endpoint with `mix phx.server` or inside IEx with `iex -S mix phx.server`
+- Start Phoenix endpoint with `mix phx.server` or inside IEx with
+  `iex -S mix phx.server`
 
 Now you can visit [`localhost:4000`](http://localhost:4000) from your browser.