chore(release): 5.1.0 [skip ci]

# [5.1.0](5.0.0...5.1.0) (2021-02-24)

### Features

* **fix:** Fix common errors ([de1ed11](de1ed11))

Author: semantic-release-bot

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "postcode",
-  "version": "5.0.0",
+  "version": "5.1.0",
   "description": "UK Postcode helper methods",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",