Add bootstrap diagram

Signed-off-by: Stefan Prodan <[email protected]>

content/en/flux/installation/bootstrap/_index.md

@@ -4,3 +4,23 @@ linkTitle: "Bootstrap"
 description: "How to bootstrap Flux for various Git providers"
 weight: 20
 ---
+
+```mermaid
+sequenceDiagram
+  actor me as admin
+  participant cli as Flux<br><br>CLI
+  participant kube as Kubernetes<br><br>API server
+  participant flux as Flux<br><br>controllers
+  participant git as Git<br><br>repository
+  me->>cli: 1. flux bootstrap
+  cli-->>git: 2. push install config
+  cli->>kube: 3. install controllers
+  cli-->>git: 4. set deploy key
+  cli->>kube: 5. set private key
+  cli-->>git: 6. push sync config
+  cli->>kube: 7. apply sync config
+  git-->>flux: 8. pull config
+  flux->>kube: 9. reconcile
+  kube->>cli: 10. report status
+  cli->>me: 11. return status
+```