fix(Release): Trigger patch version bump

Only significant change is typescript upgrade (3.7)

Test automated tagging and npm publish with semantic release

Cosmetic changes since 2.0.0:
- Improved docs
- Updated dev dependencies
- General maintenance

README.md

@@ -9,6 +9,7 @@
 [![Dependencies](https://david-dm.org/ideal-postcodes/postcode.svg)](https://david-dm.org/ideal-postcodes/postcode)
 [![Size](https://img.shields.io/bundlephobia/min/postcode.svg?style=flat)](https://bundlephobia.com/result?p=postcode)
 [![Downloads](https://img.shields.io/npm/dm/postcode.svg)](https://www.npmjs.com/package/postcode)
+[![Release](https://github.com/ideal-postcodes/postcode/workflows/Release/badge.svg)](https://github.com/ideal-postcodes/postcode/actions)
 [![Try postcode on RunKit](https://badge.runkitcdn.com/postcode.svg)](https://npm.runkit.com/postcode)
 
 Utility methods for UK Postcodes, including validating the shape of a postcode, extracting postcode elements (like incodes, outcodes, areas and [more](#Definitions)).