BB Docs Design Update

.gitlab/base_config.md.gotmpl

README.md

charter/BigBang.md

charter/DevCIWorkflow.md

charter/DocumentationLocations.md

charter/GitlabLabels.md

charter/Glossary.md

charter/New GitLab Epic Checklist Template

charter/NewPackageRequests.md

charter/PackageDocumentation.md

charter/PackageRequirements.md

charter/README.md

charter/Scratch.md

charter/SprintPlanning.md

charter/Support.md

charter/TeamRhythm.md

charter/Teams.md

charter/imgs/communication.png

charter/imgs/product_epic_overlay.png

charter/packages/README.md