fix redis doc

doc string rendered at
https://opentelemetry-python-contrib.readthedocs.io/en/latest/instrumentation/redis/redis.html
refers to `opentelemetry-instrumentation` executable which appears to be a typo

Author: pmcollins

CHANGELOG.md

@@ -7,15 +7,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+- `opentelemetry-instrumentation-redis` Fix documentation reference to nonexistent `opentelemetry-instrumentation` command
+  ([#1808](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1808))
+
 ## Version 1.18.0/0.39b0 (2023-05-10)
 
 - `opentelemetry-instrumentation-system-metrics` Add `process.` prefix to `runtime.memory`, `runtime.cpu.time`, and `runtime.gc_count`. Change `runtime.memory` from count to UpDownCounter. ([#1735](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1735))
 - Add request and response hooks for GRPC instrumentation (client only)
   ([#1706](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1706))
 - `opentelemetry-instrumentation-pymemcache` Update instrumentation to support pymemcache >4
   ([#1764](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1764))
-- `opentelemetry-instrumentation-redis` Fix documentation reference to `opentelemetry-instrumentation`
-  ([#1808](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1808))
 
 ### Added