chore(appsync): improved example DynamoDB stack in AppSync README.md file

[tlakomy]

MappingTemplate is not a global value and it has to either be explicitly imported:

import { MappingTemplate } from '@aws-cdk/aws-appsync';

or accessed via appsync field (since there is an import * as appsync from '@aws-cdk/aws-appsync'; on line 55).

It's a small thing but now the whole example code is more or less copy&paste-able 👍 (same goes for PrimaryKey and Values)

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[gitpod-io]

Pull request has been modified.

Pull request has been modified.

[MrArnoldPalmer]

@Mergifyio update

[mergify]

Command update: success

Branch has been successfully updated

[mergify]

Thank you for contributing! Your pull request will be updated from master and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

[MrArnoldPalmer]

@tlakomy just FYI mergify should auto update from master if its able and wont dismiss reviews when it does. You may have just needed to manually merge for some reason or other though and may already know this.

Regardless, TY!

[mergify]

Thank you for contributing! Your pull request will be updated from master and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

[aws-cdk-automation]

AWS CodeBuild CI Report

• CodeBuild project: AutoBuildProject6AEA49D1-qxepHUsryhcu
• Commit ID: 9d1fc41
• Result: SUCCEEDED
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[mergify]

Thank you for contributing! Your pull request will be updated from master and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).