Bump docdash from 0.4.0 to 1.0.0

Bumps [docdash](https://github.com/clenemt/docdash) from 0.4.0 to 1.0.0.
- [Release notes](https://github.com/clenemt/docdash/releases)
- [Commits](https://github.com/clenemt/docdash/commits)

Signed-off-by: dependabot[bot] <support@dependabot.com>

package.json

@@ -26,7 +26,7 @@
     "browserify": "^14.3.0",
     "coveralls": "^2.13.1",
     "deamdify": "^0.3.0",
-    "docdash": "^0.4.0",
+    "docdash": "^1.0.0",
     "eslint": "^5.8.0",
     "eslint-config-omaha-prime-grade": "^10.0.0",
     "eslint-plugin-compat": "^2.0.1",