Initial checkin.

README.md

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+# LitElement TypeScript starter 
+
+This directory includes a sample component project using LitElement with TypeScript
+
+This sample uses the TypeScript compiler (tsc) to produce JavaScript that runs in modern browsers.
+
+This sample uses [ES dev server](https://github.com/open-wc/open-wc/tree/master/packages/es-dev-server) 
+for previewing the project without a build step. ES dev server handles resolving Node-style 
+import specifiers, which aren't supported in browsers. It also automatically transpiles code 
+and adds polyfills to support older browsers.
+
+## Setup
+
+Install dependencies:
+
+```bash
+npm -i
+```
+
+## Build
+
+To build JavaScript version of your component:
+
+```bash
+npm run build
+```
+
+To watch files and rebuild when the files are modified,
+run the following command in a separate window:
+
+```bash
+npm run build:watch
+```
+
+
+## Preview
+
+Run the dev server and open the project in a new browser tab:
+
+```bash
+npm start
+```
+
+## More information
+
+See [Get started](https://lit-element.polymer-project.org/guide/start) on the LitElement site for
+more information.
+