Correct references in cmd README.md (#6539)

These links are currently broken. I didn't actually test these commands,
but #6523 looks like a simple rename, so might be fine.

## Which problem is this PR solving?
- n/a

## Description of the changes
- README updates

## How was this change tested?
- It wasn't

## Checklist
- [ ] I have read
https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING_GUIDELINES.md
- [ ] I have signed all commits
- [ ] I have added unit tests for the new functionality
- [ ] I have run lint and test steps successfully
  - for `jaeger`: `make lint test`
  - for `jaeger-ui`: `npm run lint` and `npm run test`

Signed-off-by: Jeff Youngs <[email protected]>

cmd/jaeger/README.md

@@ -34,10 +34,10 @@ flowchart LR
 
 ## Try it out
 
-* Download `docker-compose-v2.yml` from https://github.com/jaegertracing/jaeger/blob/main/examples/hotrod/docker-compose-v2.yml, e.g.:
-  * `curl -O https://raw.githubusercontent.com/jaegertracing/jaeger/refs/heads/main/examples/hotrod/docker-compose-v2.yml`
+* Download `docker-compose.yml` from https://github.com/jaegertracing/jaeger/blob/main/examples/hotrod/docker-compose.yml, e.g.:
+  * `curl -O https://raw.githubusercontent.com/jaegertracing/jaeger/refs/heads/main/examples/hotrod/docker-compose.yml`
 * Optional: find the latest images versions (see https://www.jaegertracing.io/download/) and pass them via environment variables `JAEGER_VERSION` and `HOTROD_VERSION`. Otherwise `docker compose` will use the `latest` tag, which is fine for the first time you download the images, but once they are in your local registry the `latest` tag is never updated and you may be running stale (and possibly incompatible) verions of Jaeger and the HotROD app.
 * Run Jaeger backend and HotROD demo, e.g.:
-  * `JAEGER_VERSION=2.0.0 HOTROD_VERSION=1.63.0 docker compose -f docker-compose-v2.yml up`
+  * `JAEGER_VERSION=2.0.0 HOTROD_VERSION=1.63.0 docker compose -f docker-compose.yml up`
 * Access Jaeger UI at http://localhost:16686 and HotROD app at http://localhost:8080
-* Shutdown / cleanup with `docker compose -f docker-compose-v2.yml down`
+* Shutdown / cleanup with `docker compose -f docker-compose.yml down`