Add CI (#4)

* Added credo

* Added and ran Prettier; First pass at GH Actions

* Updated actions workflow to hopefully work on this branch

* Name the folder correctly how about

* Added proper container prefix to commands

* Apparently you have to get back into the root after commands

* CI is working, update branches to final value

README.md

@@ -2,8 +2,8 @@
 
 To start your Phoenix server:
 
-  * Run `mix setup` to install and setup dependencies
-  * Start Phoenix endpoint with `mix phx.server` or inside IEx with `iex -S mix phx.server`
+- Run `mix setup` to install and setup dependencies
+- 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.
 
@@ -11,8 +11,8 @@ Ready to run in production? Please [check our deployment guides](https://hexdocs
 
 ## Learn more
 
-  * Official website: https://www.phoenixframework.org/
-  * Guides: https://hexdocs.pm/phoenix/overview.html
-  * Docs: https://hexdocs.pm/phoenix
-  * Forum: https://elixirforum.com/c/phoenix-forum
-  * Source: https://github.com/phoenixframework/phoenix
+- Official website: https://www.phoenixframework.org/
+- Guides: https://hexdocs.pm/phoenix/overview.html
+- Docs: https://hexdocs.pm/phoenix
+- Forum: https://elixirforum.com/c/phoenix-forum
+- Source: https://github.com/phoenixframework/phoenix