Remove old tutorials with discouraged carts version `0.11.x`

I was going through the tutorials and found some references to older versions of carts service 0.11.x which should not be used anymore.

Since Keptn 0.7 and below is not supported any longer I guess these could be deleted and should no longer be available through the website.

here's the complete grep output: ~/tutorials/site/tutorials/ find . -type f -name "*.md" | xargs grep -n --color=auto "carts --tag=0.11"

./keptn-full-tour-prometheus-07_gen.md:470:    keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.1
./keptn-full-tour-prometheus-07_gen.md:721:    keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.2
./keptn-full-tour-prometheus-07_gen.md:791:    keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.3
./keptn-full-tour-dynatrace-07_gen.md:666:    keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.1
./keptn-full-tour-dynatrace-07_gen.md:885:    keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.2
./keptn-full-tour-dynatrace-07_gen.md:955:    keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.3
./snippets/07/quality-gates/setupQualityGate-crc.md:69:    keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.2
./snippets/07/quality-gates/setupQualityGate-crc.md:125:    keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.3
./snippets/07/quality-gates/setupQualityGate.md:79:    keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.2
./snippets/07/quality-gates/setupQualityGate.md:149:    keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.3
./snippets/07/manage/onboardService.md:67:    keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.1
./snippets/07/manage/onboardService-crc.md:67:    keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.1
./snippets/06/quality-gates/setupQualityGate.md:73:keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.2
./snippets/06/quality-gates/setupQualityGate.md:129:  keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.3
./snippets/06/manage/onboardService.md:53:keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.1
./keptn-full-tour-prometheus-06_gen.md:148:keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.1
./keptn-full-tour-prometheus-06_gen.md:351:keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.2
./keptn-full-tour-prometheus-06_gen.md:407:  keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.3
./keptn-full-tour-dynatrace-06_gen.md:274:keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.1
./keptn-full-tour-dynatrace-06_gen.md:450:keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.2
./keptn-full-tour-dynatrace-06_gen.md:506:  keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.3
./keptn-openshift-crc-07_gen.md:540:    keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.1
./keptn-openshift-crc-07_gen.md:695:    keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.2
./keptn-openshift-crc-07_gen.md:751:    keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.3
./keptn-upscaling-dynatrace-07_gen.md:653:    keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.1
./keptn-upscaling-dynatrace-06_gen.md:132:keptn send event new-artifact --project=sockshop --service=carts --image=docker.io/keptnexamples/carts --tag=0.11.1

and then just script outputs below... ~/tutorials/site/tutorials/ find . -type f -name "*.md" | xargs grep -n --color=auto carts:0.11

./keptn-full-tour-prometheus-07_gen.md:475:    wait_for_deployment_with_image_in_namespace "carts" "sockshop-production" "docker.io/keptnexamples/carts:0.11.1"
./keptn-full-tour-prometheus-07_gen.md:726:    wait_for_deployment_with_image_in_namespace "carts" "sockshop-staging" "docker.io/keptnexamples/carts:0.11.2"
./keptn-full-tour-prometheus-07_gen.md:796:    wait_for_deployment_with_image_in_namespace "carts" "sockshop-production" "docker.io/keptnexamples/carts:0.11.3"
./keptn-full-tour-prometheus-07_gen.md:828:        Image:      docker.io/keptnexamples/carts:0.11.3
./keptn-full-tour-dynatrace-07_gen.md:671:    wait_for_deployment_with_image_in_namespace "carts" "sockshop-production" "docker.io/keptnexamples/carts:0.11.1"
./keptn-full-tour-dynatrace-07_gen.md:890:    wait_for_deployment_with_image_in_namespace "carts" "sockshop-staging" "docker.io/keptnexamples/carts:0.11.2"
./keptn-full-tour-dynatrace-07_gen.md:960:    wait_for_deployment_with_image_in_namespace "carts" "sockshop-production" "docker.io/keptnexamples/carts:0.11.3"
./keptn-full-tour-dynatrace-07_gen.md:992:        Image:      docker.io/keptnexamples/carts:0.11.3
./snippets/07/quality-gates/setupQualityGate-crc.md:74:    wait_for_deployment_with_image_in_namespace "carts" "sockshop-staging" "docker.io/keptnexamples/carts:0.11.2"
./snippets/07/quality-gates/setupQualityGate-crc.md:130:    wait_for_deployment_with_image_in_namespace "carts" "sockshop-production" "docker.io/keptnexamples/carts:0.11.3"
./snippets/07/quality-gates/setupQualityGate-crc.md:162:        Image:      docker.io/keptnexamples/carts:0.11.3
./snippets/07/quality-gates/setupQualityGate.md:84:    wait_for_deployment_with_image_in_namespace "carts" "sockshop-staging" "docker.io/keptnexamples/carts:0.11.2"
./snippets/07/quality-gates/setupQualityGate.md:154:    wait_for_deployment_with_image_in_namespace "carts" "sockshop-production" "docker.io/keptnexamples/carts:0.11.3"
./snippets/07/quality-gates/setupQualityGate.md:186:        Image:      docker.io/keptnexamples/carts:0.11.3
./snippets/07/manage/onboardService.md:72:    wait_for_deployment_with_image_in_namespace "carts" "sockshop-production" "docker.io/keptnexamples/carts:0.11.1"
./snippets/07/manage/onboardService-crc.md:72:    wait_for_deployment_with_image_in_namespace "carts" "sockshop-production" "docker.io/keptnexamples/carts:0.11.1"
./snippets/06/quality-gates/setupQualityGate.md:155:        Image:      docker.io/keptnexamples/carts:0.11.3
./keptn-full-tour-prometheus-06_gen.md:433:        Image:      docker.io/keptnexamples/carts:0.11.3
./keptn-full-tour-dynatrace-06_gen.md:532:        Image:      docker.io/keptnexamples/carts:0.11.3
./keptn-openshift-crc-07_gen.md:545:    wait_for_deployment_with_image_in_namespace "carts" "sockshop-production" "docker.io/keptnexamples/carts:0.11.1"
./keptn-openshift-crc-07_gen.md:700:    wait_for_deployment_with_image_in_namespace "carts" "sockshop-staging" "docker.io/keptnexamples/carts:0.11.2"
./keptn-openshift-crc-07_gen.md:756:    wait_for_deployment_with_image_in_namespace "carts" "sockshop-production" "docker.io/keptnexamples/carts:0.11.3"
./keptn-openshift-crc-07_gen.md:788:        Image:      docker.io/keptnexamples/carts:0.11.3
./keptn-upscaling-dynatrace-07_gen.md:658:    wait_for_deployment_with_image_in_namespace "carts" "sockshop-production" "docker.io/keptnexamples/carts:0.11.1"

keptn / tutorials

Remove old tutorials with discouraged carts version `0.11.x` #223