Reword doc paragraph

Author: xrmx

CONTRIBUTING.md

@@ -274,7 +274,7 @@ Below is a checklist of things to be mindful of when implementing a new instrume
   - ex. <https://github.com/open-telemetry/opentelemetry-python-contrib/blob/60fb936b7e5371b3e5587074906c49fb873cbd76/instrumentation/opentelemetry-instrumentation-grpc/tests/test_aio_server_interceptor.py#L84>
 - Most of the instrumentations have the same version. If you are going to develop a new instrumentation it would probably have `X.Y.dev` version and depends on `opentelemetry-instrumentation` and `opentelemetry-semantic-conventions` for a [compatible version](https://peps.python.org/pep-0440/#compatible-release). That means that you may need to install the instrumentation dependencies from this repo and the core repo from git.
 - Documentation
-  - When adding a new instrumentation remember to add an entry in `docs/instrumentation/<instrumentation>/<instrumentation>.rst`
+  - When adding a new instrumentation remember to add an entry in `docs/instrumentation/` named `<instrumentation>/<instrumentation>.rst` to have the instrumentation documentation referenced from the index.
 
 ## Guideline for GenAI instrumentations