Combining customer_issues.md content with handover
Created by: emchap
https://github.com/sourcegraph/about/edit/main/handbook/ce/customer_issues.md seems duplicative of this document. Taking the content from that article and moving it here.
Created by: emchap
https://github.com/sourcegraph/about/edit/main/handbook/ce/customer_issues.md seems duplicative of this document. Taking the content from that article and moving it here.