build: use config file for linkinator (googleapis#504)

Author: JustinBeckwith

handwritten/bigtable/linkinator.config.json

@@ -0,0 +1,7 @@
+{
+  "recurse": true,
+  "skip": [
+    "https://codecov.io/gh/googleapis/",
+    "www.googleapis.com"
+  ]
+}

handwritten/bigtable/package.json

@@ -32,7 +32,7 @@
     "compile": "tsc -p . && cp -r src/v2 build/src/ && cp -r proto* build/ && cp test/*.js build/test",
     "docs": "jsdoc -c .jsdoc.js",
     "predocs-test": "npm run docs",
-    "docs-test": "linkinator docs -r --skip www.googleapis.com",
+    "docs-test": "linkinator docs",
     "fix": "gts fix && npm run lintfix",
     "lint": "eslint '**/*.js'",
     "lintfix": "eslint --fix '**/*.js'",
@@ -88,7 +88,7 @@
     "intelli-espower-loader": "^1.0.1",
     "jsdoc": "^3.6.2",
     "jsdoc-baseline": "^0.1.0",
-    "linkinator": "^1.1.2",
+    "linkinator": "^1.5.0",
     "mkdirp": "^0.5.1",
     "mocha": "^6.0.0",
     "nyc": "^14.0.0",