updated instructions for adding acs plugin as dynamic plugin

Signed-off-by: Matt Knop <[email protected]>

Author: maknop

workspaces/acs/plugins/acs/README.md

@@ -87,10 +87,17 @@ acs:
 
 The ACS plugin is also available as a [Red Hat Developer Hub (RHDH)](https://github.com/redhat-developer/rhdh) dynamic plugin. The following should be able to run within the [RHDH local](https://github.com/redhat-developer/rhdh-local) repo.
 
+First, retrieve the sha for the NPM package of the ACS plugin:
+
+```
+npm view --registry npmjs.com/package/@backstage-community/plugin-acs @backstage-community/plugin-acs@<version> dist.integrity
+```
+
 Here's an example of how to configure the ACS plugin as a dynamic plugin in RHDH:
 
 ```yaml
 - package: '@backstage-community/[email protected]'
+  integrity: <integrity sha>
   disabled: false
   pluginConfig:
     dynamicPlugins: