Update the CONTRIBUTING.md

[gkwan-ibm]

The CONTRIBUTING.md is still using qa. It should be updated to staging

[gkwan-ibm]

update the CONTRIBUTING.md of the following guides as same s https://raw.githubusercontent.com/OpenLiberty/guide-openliberty-operator-intro/prod/CONTRIBUTING.md

• [ ] guide-gradle-intro
• [ ] guide-rest-intro
• [ ] guide-maven-intro
• [ ] guide-social-media-login
• [ ] guides-common
• [ ] guide-cloud-openshift
• [ ] guide-microprofile-opentracing-jaeger
• [ ] guide-bean-validation
• [ ] guide-security-intro
• [ ] guide-cloud-openshift-operator
• [ ] guide-jpa-intro
• [ ] guide-microprofile-graphql
• [ ] guide-getting-started
• [ ] guide-microprofile-opentracing
• [ ] guide-rest-hateoas
• [ ] guide-rest-client-java
• [ ] guide-microprofile-fallback
• [ ] guide-rest-client-angular
• [ ] guide-microprofile-reactive-messaging-acknowledgment
• [ ] guide-reactive-rest-client
• [ ] guide-microprofile-reactive-messaging-rest-integration
• [ ] guide-containerize
• [ ] guide-cloud-google
• [ ] guide-microprofile-rest-client
• [ ] guide-microprofile-reactive-messaging
• [ ] guide-maven-multimodules
• [ ] guide-cloud-ibm
• [ ] guide-kubernetes-intro
• [ ] guide-microprofile-metrics
• [ ] guide-microprofile-config
• [ ] guide-microshed-testing
• [ ] guide-kubernetes-microprofile-config
• [ ] guide-microprofile-rest-client-async
• [ ] guide-reactive-messaging-sse
• [ ] guide-cloud-aws
• [ ] guide-contract-testing
• [ ] guide-docker
• [ ] guide-okd
• [ ] guide-istio-intro
• [ ] guide-microprofile-openapi
• [ ] guide-microprofile-jwt
• [ ] guide-reactive-service-testing
• [ ] guide-microprofile-istio-retry-fallback
• [ ] guide-cdi-intro
• [ ] guide-cors
• [ ] guide-kubernetes-microprofile-health
• [ ] guide-spring-boot
• [ ] guide-microprofile-health
• [ ] guide-mongodb-intro

[gkwan-ibm]

Unto now, the following guides either has no PR or PR is not good enough

• [x] guide-social-media-login
• [x] guides-common
• [x] guide-cloud-openshift-operator
• [x] guide-rest-client-angularjs
• [x] guide-sessions
• [x] guide-arquillian-managed
• [x] guide-rest-client-reactjs
• [x] guide-cloud-aws
• [x] guide-microprofile-jwt

[gkwan-ibm]

close

• all above guides were updated