move hack/otel to contrib

Aligning with where we put this in moby, and contrib is a slightly
more suitable location for this.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

contrib/otel/README.md

@@ -5,21 +5,21 @@ To test the OTEL functionality present in the CLI, you can spin up a small demo
 - a Prometheus container;
 - an Aspire Dashboard container
 
-The `hack/otel` directory contains the compose file with the services configured, along with 2 basic configuration files: one for the OTEL collector and one for Prometheus.
+The `contrib/otel` directory contains the compose file with the services configured, along with 2 basic configuration files: one for the OTEL collector and one for Prometheus.
 
 ## How can I use it?
 
-1) Start the compose stack by running `docker compose up -d` in the `hack/otel/` directory;
+1) Start the compose stack by running `docker compose up -d` in the `contrib/otel/` directory;
 2) Export the env var used to override the OTLP endpoint:  
   `export DOCKER_CLI_OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:4317` (if running the CLI in a devcontainer or in other ways, you might have to change how you pass this env var);
 3) Run the CLI to send some metrics to the endpoint;
 4) Browse Prometheus at `http://localhost:9091/graph` or the Aspire Dashboard at  `http://localhost:18888/metrics`;
 5) In Prometheus, query `command_time_milliseconds_total` to see some metrics. In Aspire, select the resource in the dropdown.
 
-> **Note**: The precise steps may vary based on how you're working on the codebase (buiding a binary and executing natively, running/debugging in a devcontainer, running the normal CLI as usual, etc... )
+> **Note**: The precise steps may vary based on how you're working on the codebase (building a binary and executing natively, running/debugging in a devcontainer, running the normal CLI as usual, etc... )
 
 ## Cleanup?
 
-Run `docker compose down` in the `hack/otel/` directory.
+Run `docker compose down` in the `contrib/otel/` directory.
 
 You can also run `unset DOCKER_CLI_OTEL_EXPORTER_OTLP_ENDPOINT` to get rid of the OTLP override from your environment.