chore(package): update @semantic-release/release-notes-generator to version 7.1.3

Closes #13

Author: greenkeeper[bot]

package.json

@@ -40,7 +40,7 @@
   "dependencies": {},
   "sideEffects": false,
   "devDependencies": {
-    "@semantic-release/release-notes-generator": "^6.0.12",
+    "@semantic-release/release-notes-generator": "^7.1.3",
     "ava": "^0.25.0",
     "concurrently": "^3.5.1",
     "cz-conventional-changelog": "^2.1.0",