docs(workflow): re-adding workflow after rebase

This supercedes #263.

docs/workflow/helm-dm-diagrams.src.md

+# Helm-DM Workflow Diagrams
+
+# Helm Official
+@startuml helm-official-workflow.png
+autonumber
+actor Member
+actor Core
+participant GitHub
+participant CI
+database Repository
+Member->GitHub: PR New Chart
+GitHub->CI: Run automated tests
+CI->GitHub: Tests pass
+GitHub-->Member: Tests pass
+GitHub-->Core: Tests pass
+Core<->Member: Discussion about chart
+Core->GitHub: Code review
+Core->GitHub: Release approval
+GitHub->CI: Issue release
+CI->Repository: Push release
+Member->Repository: Get release
+@enduml
+
+# Public Chart Repository
+An example workflow using Launchpad and BZR.
+@startuml public-chart-repo.png
+autonumber
+actor Developer
+actor Maintainer
+participant Launchpad
+Developer->Launchpad: Push branch with chart
+Maintainer->Launchpad: Fetch branch
+Maintainer->Maintainer: Locally test
+Maintainer->Launchpad: Merge branch
+... later ...
+Maintainer->Launchpad: Create global release
+Maintainer->Maintainer: Regenerate all versioned charts
+Maintainer->Repository: Push charts
+@enduml
+
+# Private chart repository
+An example workflow using an internal Gerrit Git repo and Jenkins.
+@startuml private-chart-repo.png
+autonumber
+actor "Developer A" as A
+actor "Developer B" as B
+actor "Internal user" as Internal
+participant Gerrit
+participant Jenkins
+participant "Docker registry" as Docker
+participant "Chart repository" as Chart
+A->Gerrit: Clone repo
+A->A: Local development
+A->Gerrit: Push branch
+Gerrit->Jenkins: Test branch
+Jenkins->Jenkins: Build and test
+Jenkins->Docker: Snapshot image push
+Jenkins->Chart: Snapshot chart
+Jenkins->Jenkins: Integration tests
+Jenkins-->A: Build OK
+B->Gerrit: Code review
+B->A: Code approval
+A->Gerrit: Tag the new chart
+Gerrit->Jenkins: Release
+Jenkins->Jenkins: Build and test
+Jenkins->Docker: Production image push
+Jenkins->Chart: Production chart
+Internal->Chart: Get production chart
+@enduml
+
+# Private Charts without repository
+An example using SVN for local dev, and no chart repository.
+@startuml private-chart-no-repo.png
+autonumber
+actor "Developer A" as A
+actor "Developer B" as B
+participant SVN
+participant Kubernetes
+A->SVN: Checkout code
+A->A: Develop locally
+A->SVN: Check in code
+B<->SVN: Update local
+B->Kubernetes: Run helm deploy on local chart
+@enduml