chore(package): update docdash to version 1.0.2

Closes #20

Author: greenkeeper[bot]

package.json

@@ -28,7 +28,7 @@
   "devDependencies": {
     "chai": "^4.0.2",
     "codecov": "^3.0.0",
-    "docdash": "^0.4.0",
+    "docdash": "^1.0.2",
     "eslint": "^4.12.1",
     "istanbul": "^0.4.5",
     "jsdoc": "^3.4.3",