📝 Update CICD README.md (#1315)

* Use mermaid to draw simple cicd flowchart
* Remove outdated information about very old and deprecated helm charts

.github/workflows/README.md

@@ -1,34 +1,17 @@
 # CI/CD
 
-:warning: WIP
+The CI/CD pipeline is defined in the [cicd.yml](cicd.yml) file.
 
-When deploying with [Helm repository](https://github.com/didx-xyz/cloud_api_helm), symlink the `./shared` dir inside `./helm/Chart/assets/shared`:
-
-```sh
-git clone [email protected]:didx-xyz/cloud_api_helm.git helm/Chart
-mkdir helm/Chart/assets
-cd helm/Chart/assets
-ln -s ../../../shared .
+```mermaid
+---
+title: CI/CD Pipeline
+---
+flowchart LR
+    Format(Check code<br>formatting) ---> Build(Build/Push all<br>Docker Images)
+    Unit(Run Unit Tests) ---> Build(Build/Push all<br>Docker Images)
+    Build ---> Local(Deploy and Test local<br>ephemeral k8s)
+    Build ---> Deploy(Deploy and Test EKS)
 ```
 
-From the root of this repo:
-
-```sh
-PROJECTS=(
-  ledger-nodes
-  ledger-browser
-  tails-server
-  governance-ga-agent
-  governance-trust-registry
-  governance-multitenant-web
-  governance-multitenant-agent
-  governance-endorser
-)
-
-for PROJECT in "${PROJECTS[@]}"; do
-  helm -n app upgrade --install --atomic --timeout=300s \
-    $PROJECT \
-    -f "./helm/Values/$PROJECT.yaml" \
-    ./helm/Chart/.
-done
-```
+Refer to the [helm](../../helm) directory for the Helm charts and Helmfile
+configs to deploy acapy-cloud.