changed first person to comply with style guide (#11890)

**What this PR does / why we need it**:
changed first person to comply with style guide

**Which issue(s) this PR fixes**:
Fixes #<issue number>
No issue

**Special notes for your reviewer**:

**Checklist**
- [ ] Reviewed the
[`CONTRIBUTING.md`](https://github.com/grafana/loki/blob/main/CONTRIBUTING.md)
guide (**required**)
- [ ] Documentation added
- [ ] Tests updated
- [ ] `CHANGELOG.md` updated
- [ ] If the change is worth mentioning in the release notes, add
`add-to-release-notes` label
- [ ] Changes that require user attention or interaction to upgrade are
documented in `docs/sources/setup/upgrade/_index.md`
- [ ] For Helm chart changes bump the Helm chart version in
`production/helm/loki/Chart.yaml` and update
`production/helm/loki/CHANGELOG.md` and
`production/helm/loki/README.md`. [Example
PR](d10549e)
- [ ] If the change is deprecating or removing a configuration option,
update the `deprecated-config.yaml` and `deleted-config.yaml` files
respectively in the `tools/deprecated-config-checker` directory.
[Example
PR](0d4416a)

docs/sources/setup/install/docker.md

@@ -9,7 +9,7 @@ weight: 400
 # Install Loki with Docker or Docker Compose
 
 You can install Loki and Promtail with Docker or Docker Compose if you are evaluating, testing, or developing Loki.
-For production, we recommend installing with Tanka or Helm.
+For production, Grafana recommends installing with Tanka or Helm.
 
 The configuration acquired with these installation instructions run Loki as a single binary.