Updating self-managed capitalization

Because it's currently uppercase

doc/administration/auth/index.md

@@ -19,7 +19,7 @@ and the following external authentication and authorization providers:
 NOTE:
 UltraAuth has removed their software which supports OmniAuth integration. We have therefore removed all references to UltraAuth integration.
 
-## SaaS vs Self-Managed Comparison
+## SaaS vs self-managed comparison
 
 The external authentication and authorization providers may support the following capabilities.
 For more information, see the links shown on this page for each external provider.

doc/administration/packages/container_registry.md

@@ -1618,7 +1618,7 @@ this error appears:
 
 - `Error response from daemon: manifest invalid: Schema 1 manifest not supported`
 
-For Self-Managed GitLab instances, you can regain access to these images by temporarily downgrading
+For self-managed GitLab instances, you can regain access to these images by temporarily downgrading
 the GitLab Container Registry to a version lower than `v3.0.0-gitlab`. Follow these steps to regain
 access to these images:
 

doc/architecture/blueprints/container_registry_metadata_database/index.md

@@ -174,7 +174,7 @@ The diagram below illustrates the architecture of the database cluster:
 
 [Rate](https://gitlab.com/gitlab-org/container-registry/-/issues/94) and [size](https://gitlab.com/gitlab-org/container-registry/-/issues/61#note_446609886) requirements for the GitLab.com database were extrapolated based on the `dev.gitlab.org` registry and are available in the linked issues.
 
-#### Self-Managed Instances
+#### Self-managed instances
 
 By default, for self-managed instances, the registry will have a separate logical database in the same PostgreSQL instance/cluster as the GitLab database. However, it will be possible to configure the registry to use a separate instance/cluster if needed.
 

doc/architecture/blueprints/container_registry_metadata_database_self_managed_rollout/index.md

@@ -135,7 +135,7 @@ drivers, we could have the importer retry more time and for more errors. There's
 a risk we would retry several times on non-retryable errors, but since no writes
 are being made to object storage, this should not ultimately be harmful.
 
-Additionally, implementing [Validate Self-Managed Imports](https://gitlab.com/gitlab-org/container-registry/-/issues/938)
+Additionally, implementing [Validate self-managed imports](https://gitlab.com/gitlab-org/container-registry/-/issues/938)
 would perform a consistency check against a sample of images before and after
 import which would lead to greater consistency across all storage driver implementations.
 

doc/development/packages/new_format_development.md

@@ -62,7 +62,7 @@ As an MVC, we recommend beginning with a project-level endpoint. A typical itera
 
 - Publish and install in a project
 - Install from a group
-- Publish and install in an Instance (this is for Self-Managed customers)
+- Publish and install in an instance (this is for self-managed customers)
 
 Using instance-level endpoints requires [stricter naming conventions](#naming-conventions).
 

doc/install/openshift_and_gitlab/index.md

@@ -12,7 +12,7 @@ OpenShift - GitLab compatibility can be addressed in three different aspects. Th
 
 OpenShift helps you to develop, deploy, and manage container-based applications. It provides you with a self-service platform to create, modify, and deploy applications on demand, thus enabling faster development and release life cycles.
 
-## Use OpenShift to run GitLab Self-Managed
+## Use OpenShift to run GitLab self-managed
 
 Running GitLab within an OpenShift cluster is officially supported using the GitLab Operator. You can learn more on
 [setting up GitLab on OpenShift on the GitLab Operator's documentation](https://docs.gitlab.com/charts/installation/operator.html).

doc/user/application_security/sast/analyzers.md

@@ -141,7 +141,7 @@ To preview the upcoming changes to the CI/CD configuration in GitLab 15.3 or ear
         template: 'Jobs/SAST.latest.gitlab-ci.yaml'
       ```
 
-    - On a Self-Managed instance, download the template from GitLab.com:
+    - On a self-managed instance, download the template from GitLab.com:
 
       ```yaml
       include: