docs: fix productSearch example (#285)

.kokoro/test.sh

@@ -22,5 +22,6 @@ cd $(dirname $0)/..
 
 npm install
 npm test
+./node_modules/nyc/bin/nyc.js report
 
 bash $KOKORO_GFILE_DIR/codecov.sh

.nycrc

@@ -3,7 +3,8 @@
   "exclude": [
     "src/*{/*,/**/*}.js",
     "src/*/v*/*.js",
-    "test/**/*.js"
+    "test/**/*.js",
+    "build/test"
   ],
   "watermarks": {
     "branches": [

package.json

@@ -29,14 +29,12 @@
     "Google Cloud Vision API"
   ],
   "scripts": {
-    "cover": "nyc --reporter=lcov mocha test/*.js && nyc report",
     "docs": "jsdoc -c .jsdoc.js",
     "generate-scaffolding": "repo-tools generate all && repo-tools generate lib_samples_readme -l samples/ --config ../.cloud-repo-tools.json",
     "lint": "eslint '**/*.js'",
     "samples-test": "cd samples/ && npm link ../ && npm test && cd ../",
     "system-test": "mocha system-test/*.js smoke-test/*.js --timeout 600000",
-    "test-no-cover": "mocha test/*.js",
-    "test": "npm run cover",
+    "test": "nyc mocha",
     "fix": "eslint --fix '**/*.js'"
   },
   "dependencies": {

src/helpers.js

@@ -871,7 +871,7 @@ module.exports = apiVersion => {
    * };
    *
    * client
-   *   .webDetection(request)
+   *   .productSearch(request)
    *   .then(response => {
    *     // doThingsWith(response);
    *   })