build: check broken links in generated docs (#202)

* build: check dead links on Kokoro

* recursive crawl local links

Author: jkwlui

packages/google-cloud-dns/.jsdoc.js

@@ -20,7 +20,7 @@ module.exports = {
   opts: {
     readme: './README.md',
     package: './package.json',
-    template: './node_modules/ink-docstrap/template',
+    template: './node_modules/jsdoc-baseline',
     recurse: true,
     verbose: true,
     destination: './docs/'

packages/google-cloud-dns/package.json

@@ -69,7 +69,7 @@
     "eslint-plugin-node": "^8.0.0",
     "eslint-plugin-prettier": "^3.0.0",
     "gts": "^0.9.0",
-    "ink-docstrap": "^1.3.2",
+    "jsdoc-baseline": "git+https://github.com/hegemonic/jsdoc-baseline.git",
     "intelli-espower-loader": "^1.0.1",
     "jsdoc": "^3.5.5",
     "mocha": "^5.2.0",