updated cloudformation links to exclude regions that do not have Cloud9 available since users will not likely manage cross-region resources in this workshop.

Author: kylesomers

Auth/2_ServerlessAPI/README.md

@@ -27,12 +27,8 @@ Region| Launch
 US East (N. Virginia) | [![Launch Serverless Backend in us-east-1](http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/images/cloudformation-launch-stack-button.png)](https://console.aws.amazon.com/cloudformation/home?region=us-east-1#/stacks/new?stackName=WildRydesBackend&templateURL=https://s3.amazonaws.com/wildrydes-us-east-1/Auth/2_ServerlessAPI/ServerlessBackend.yaml)
 US East (Ohio) | [![Launch Serverless Backend in us-east-2](http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/images/cloudformation-launch-stack-button.png)](https://console.aws.amazon.com/cloudformation/home?region=us-east-2#/stacks/new?stackName=WildRydesBackend&templateURL=https://s3.amazonaws.com/wildrydes-us-east-2/Auth/2_ServerlessAPI/ServerlessBackend.yaml)
 US West (Oregon) | [![Launch Serverless Backend in us-west-2](http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/images/cloudformation-launch-stack-button.png)](https://console.aws.amazon.com/cloudformation/home?region=us-west-2#/stacks/new?stackName=WildRydesBackend&templateURL=https://s3.amazonaws.com/wildrydes-us-west-2/Auth/2_ServerlessAPI/ServerlessBackend.yaml)
-EU (Frankfurt) | [![Launch Serverless Backend in eu-central-1](http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/images/cloudformation-launch-stack-button.png)](https://console.aws.amazon.com/cloudformation/home?region=eu-central-1#/stacks/new?stackName=WildRydesBackend&templateURL=https://s3.amazonaws.com/wildrydes-eu-central-1/Auth/2_ServerlessAPI/ServerlessBackend.yaml)
 EU (Ireland) | [![Launch Serverless Backend in eu-west-1](http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/images/cloudformation-launch-stack-button.png)](https://console.aws.amazon.com/cloudformation/home?region=eu-west-1#/stacks/new?stackName=WildRydesBackend&templateURL=https://s3.amazonaws.com/wildrydes-eu-west-1/Auth/2_ServerlessAPI/ServerlessBackend.yaml)
-EU (London) | [![Launch Serverless Backend in eu-west-2](http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/images/cloudformation-launch-stack-button.png)](https://console.aws.amazon.com/cloudformation/home?region=eu-west-2#/stacks/new?stackName=WildRydesBackend&templateURL=https://s3.amazonaws.com/wildrydes-eu-west-2/Auth/2_ServerlessAPI/ServerlessBackend.yaml)
-Asia Pacific (Mumbai) | [![Launch Serverless Backend in ap-south-1](http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/images/cloudformation-launch-stack-button.png)](https://console.aws.amazon.com/cloudformation/home?region=ap-south-1#/stacks/new?stackName=WildRydesBackend&templateURL=https://s3.amazonaws.com/wildrydes-ap-south-1/Auth/2_ServerlessAPI/ServerlessBackend.yaml)
 Asia Pacific (Singapore) | [![Launch Serverless Backend in ap-southeast-1](http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/images/cloudformation-launch-stack-button.png)](https://console.aws.amazon.com/cloudformation/home?region=ap-southeast-1#/stacks/new?stackName=WildRydesBackend&templateURL=https://s3.amazonaws.com/wildrydes-ap-southeast-1/Auth/2_ServerlessAPI/ServerlessBackend.yaml)
-Asia Pacific (Sydney) | [![Launch Serverless Backend in ap-southeast-2](http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/images/cloudformation-launch-stack-button.png)](https://console.aws.amazon.com/cloudformation/home?region=ap-southeast-2#/stacks/new?stackName=WildRydesBackend&templateURL=https://s3.amazonaws.com/wildrydes-ap-southeast-2/Auth/2_ServerlessAPI/ServerlessBackend.yaml)
 
 <details>
 <summary><strong>Step-by-step instructions (expand for details)</strong></summary><p>