CR-23224 create README.md (#691)

* CR-23224 create README.md

* CR-23224 create README.md

* CR-23224 create README.md

Author: vadim-kharin-codefresh

incubating/argo-cd-sync/README.md

@@ -0,0 +1,30 @@
+# gitops-argocd-sync
+
+Syncs Argo CD apps managed by our GitOps Runtimes using Codefresh API
+
+##  Installation 
+
+* `pip3 install -r requirements.txt`
+
+## Run
+
+* `python3 argocd_sync.py`
+
+## Supported parameters
+| Name           | Description                                                                               | Optional | Default value                          |
+|:---------------|:------------------------------------------------------------------------------------------|:---------|:---------------------------------------|
+| RUNTIME        | The name of the GitOps Runtime managing the Argo CD Application                           | false    |                                        |
+| APPLICATION    | The name of the Argo CD Application to be synced                                          | false    |                                        |
+| ROLLBACK       | Initiate a rollback to the previous revision if the Sync and Wait does not become healthy | true     |                                        |
+| WAIT_ROLLBACK  | Wait for the app to be healthy after a rollback. Forces ROLLBACK to true                  | true     |                                        |
+| CA_BUNDLE      | A base64 encoded string that contain the complete CA Certificate Bundle                   | true     |                                        |
+| INSECURE       | Allows the usage of a self-signed certificate in the chain to reach the API endpoint      | true     |                                        |
+| WAIT_HEALTHY   | Wait for the app to be healthy                                                            | true     | false                                  |
+| INTERVAL       | Interval in seconds to wait between checks                                                | true     | 10                                     |
+| MAX_CHECKS     | Maximum numbers of checks to do (to avoid forever wait)                                   | true     | 10                                     |
+| LOG_LEVEL      | Set the log level, e.g. 'debug', 'info', 'warn', 'error', 'critical' (default 'error')    | true     | error                                  |
+| CF_URL         | Codefresh API URL                                                                         | true     | https://g.codefresh.io                 |
+| CF_API_KEY     | Codefresh API token                                                                       | true     |                                        |
+| CF_STEP_NAME   | Used in generating a link to the Apps Dashboard                                           | true     | STEP_NAME                              |
+| IMAGE_NAME     | Overwrites the image name                                                                 | true     | quay.io/codefreshplugins/argo-cd-sync  |
+| IMAGE_TAG      | Overwrites the tag                                                                        | true     | 1.4.4                                  |