Update README.md

Author: rcastley

workshop/aws/ec2/README.md

@@ -54,7 +54,7 @@ The following variables are available. Edit `terraform.tfvars` to reflect what y
 
 - `splunk_presetup`: Provide a preconfigured instance (OTel Collector and Online Boutique deployed with RUM enabled). The default is FALSE.
 - `splunk_jdk`: Install OpenJDK and Maven on the instance. The default is FALSE.
-- `otel_demo` : Install and configure the OpenTelemetry Telescope Shop Demo. This requires that `splunk_presetup` is set to FALSE. The default is FALSE
+- `otel_demo` : Install and configure the OpenTelemetry Astronomy Shop Demo. This requires that `splunk_presetup` is set to FALSE. The default is FALSE
 
 ## 6. Create a Terraform plan