chore(release): 2.1.0 [skip ci]

# [2.1.0](2.0.0...2.1.0) (2020-08-07)

### Features

* **Core Interface:** Bump to 1.6.0 ([8a723e6](8a723e6))

Author: semantic-release-bot

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@ideal-postcodes/core-node",
-  "version": "2.0.0",
+  "version": "2.1.0",
   "description": "Node.js client for api.ideal-postcodes.co.uk",
   "author": {
     "name": "Ideal Postcodes",