Updated readme for helm-chart

charts/oai-5g-ran/oai-cu-cp/values.yaml

charts/oai-5g-ran/oai-cu-up/values.yaml

charts/oai-5g-ran/oai-cu/values.yaml

charts/oai-5g-ran/oai-du/templates/service.yaml

charts/oai-5g-ran/oai-du/values.yaml

charts/oai-5g-ran/oai-gnb/templates/configmap.yaml

charts/oai-5g-ran/oai-gnb/templates/service.yaml

charts/oai-5g-ran/oai-gnb/values.yaml

charts/oai-5g-ran/oai-nr-ue/values.yaml

docs/DEPLOY_SA5G_HC.md

docs/DEPLOY_SA5G_HC_mini.md

docs/images/helm-chart-basic.png

docs/images/helm-chart-current.png

docs/images/helm-chart-mini.png

docs/images/helm-chart.png