Support boilerplate for TypeScript projects

I would like to support boilerplate code for ReasonML, TypeScript,
ClojureScript, and Elm projects before I specialize in any of these
frameworks. All of my projects should use TailwindCSS.

All of this boilerplate should offer:
- Same command to start developing
- Same API to build and deploy
- TailwindCSS support
- Basic boilerplate for components, state, and routes

This TypeScript boilerplate is not complete, but I would like to commit the
progress in case I do not return to this for awhile.

boilerplate/README.md

@@ -0,0 +1,21 @@
+# Boilerplate
+
+Storing some boilerplate code to help me reduce the time it takes me to develop
+and deploy applications.
+
+## Usage
+
+Let's say that you would like to create a game for
+`sandbox.wpcarro.dev/game`. We will create a new TypeScript project with the
+following:
+
+```shell
+$ cp ~/briefcase/boilerplate/typescript ~/briefcase/website/sandbox/game
+```
+
+This initializes the project. To start developing, run:
+
+```shell
+$ nix-shell
+$ yarn run dev
+```