docs: add readme for charts package

packages/pelagos-charts/README.md

@@ -0,0 +1,25 @@
+# @bluecateng/pelagos-charts [![GitHub license](https://img.shields.io/badge/license-ISC-blue.svg)](https://github.com/bluecatengineering/pelagos-packages/blob/master/LICENSE) [![npm version](https://img.shields.io/npm/v/@bluecateng/pelagos-charts.svg?style=flat)](https://www.npmjs.com/package/@bluecateng/pelagos-charts)
+
+Chart components.
+
+## Installation
+
+```bash
+npm i -S @bluecateng/pelagos-charts
+```
+
+## Setup
+
+Add the following lines to the main less file. Use either `charts-light` or `charts-dark` depending on the selected theme.
+
+```less
+@import '~@bluecateng/pelagos-charts/less/palettes';
+
+:root {
+	.charts-light();
+}
+```
+
+## Storybook
+
+For examples and documentation, please see [the Storybook site](https://storybook.dnsedge.tools/)