add docs

README.md

@@ -91,13 +91,18 @@ To enable the Soroban RPC server provide the following command line flags when s
 
 The Soroban RPC Server will be avaialble on port 8000 of the container, and the base URL path for Soroban RPC will be `http://<container_host>:8000/soroban/rpc`. This endpoint uses [JSON-RPC](https://www.jsonrpc.org/specification) protocol. Refer to example usages in [soroban-example-dapp](https://github.com/stellar/soroban-example-dapp).
 
+To enable Soroban diagnostic events provide the following command line flag when starting the container:
+`--enable-soroban-diagnostic-events`
+
+In local network mode diagnostics are enabled by default and can be disabled with:
+`--disable-soroban-diagnostic-events`
+
 To enable soroban rpc admin endpoint for access to metrics and [Go pprof (profiling)](https://pkg.go.dev/net/http/pprof), include the `--enable-soroban-rpc-admin-endpoint` flag, the HTTP endpoint will be listening on container port 6061, which can be exposed with standard docker port rule `-p "6061:6061"`, the published endpoints are:
 ```
 http://<container_host>:6061/metrics
 http://<container_host>:6061/debug/pprof/
 ```
 
-
 ### Deploy to Digital Ocean
 
 You can deploy the quickstart image to DigitalOcean by clicking the button below. It will by default create a container that can be used for development and testing, running the `latest` tag, in ephemeral mode, and on the `local` network.