error-reporting: Fix README typos showing usage

[DominicKramer]

No description provided.

[coveralls]

Changes Unknown when pulling 54ad09e on DominicKramer:docs/update-README-usage-typo into ** on GoogleCloudPlatform:master**.

[coveralls]

Changes Unknown when pulling a738e57 on DominicKramer:docs/update-README-usage-typo into ** on GoogleCloudPlatform:master**.

[stephenplusplus]

LGTM -- do you want to ping anyone else for a review?

[DominicKramer]

@stephenplusplus I've sent another review out.

[kjin]

LGTM w/ nit

[DominicKramer]

@stephenplusplus The test failures look unrelated to this PR. Other than the test failures, this PR is ready to land.

[stephenplusplus]

Could you paste the errors from Circle? Mobile and Circle log outputs do not get along.

[DominicKramer]

@stephenplusplus Below are sections of the test output that I think are relevant.

. scripts/circle/test.sh
...
> google-cloud-node@ postinstall /home/ubuntu/google-cloud-node
> node ./scripts/install.js
...
Installing dependencies for dns
Installing dependencies for error-reporting
Installing dependencies for google-cloud
Installing dependencies for language
...
> google-cloud-node@ lint /home/ubuntu/google-cloud-node
> jshint scripts/ packages/ system-test/ test/ && jscs packages/ system-test/ test/

git remote add temp https://github.com/GoogleCloudPlatform/google-cloud-node.git
git fetch -q temp
Warning: Permanently added the RSA host key for IP address '192.30.253.113' to the list of known hosts.

git diff HEAD temp/master --name-only
.jscsrc
.jshintignore
docs/manifest.json
packages/error-reporting/README.md
packages/error-reporting/doc/images/errors-overview.png
packages/error-reporting/src/interfaces/hapi.js
packages/error-reporting/test/unit/interfaces/hapi.js
packages/logging/package.json
packages/logging/src/log.js
packages/logging/src/metadata.js
packages/logging/system-test/logging.js
packages/logging/test/log.js
packages/logging/test/metadata.js
packages/video-intelligence/package.json
packages/video-intelligence/src/index.js
packages/video-intelligence/src/v1beta1/index.js
packages/video-intelligence/src/v1beta1/video_intelligence_service_client.js
packages/video-intelligence/src/v1beta1/video_intelligence_service_client_config.json
packages/video-intelligence/test/gapic-v1beta1.js
scripts/docs/config.js
scripts/helpers.js

module.js:327
    throw err;
    ^

Error: Cannot find module '/home/ubuntu/google-cloud-node/packages/video-intelligence/package.json'
    at Function.Module._resolveFilename (module.js:325:15)
    at Function.Module._load (module.js:276:25)
    at Module.require (module.js:353:17)
    at require (internal/module.js:12:17)
    at new Module (/home/ubuntu/google-cloud-node/scripts/helpers.js:63:17)
    at Module (/home/ubuntu/google-cloud-node/scripts/helpers.js:57:12)
    at Array.map (native)
    at Function.Module.getUpdated (/home/ubuntu/google-cloud-node/scripts/helpers.js:142:24)
    at Object.<anonymous> (/home/ubuntu/google-cloud-node/scripts/build.js:50:22)
    at Module._compile (module.js:409:26)

. scripts/circle/test.sh returned exit code 1

[stephenplusplus]

Thanks!