Docs: Review config/database.yml

doc/development/database/multiple_databases.md

@@ -630,9 +630,13 @@ keys"](loose_foreign_keys.md).
 
 ## `config/database.yml`
 
-GitLab will support running multiple databases in the future, for example to [separate tables for the continuous integration features](https://gitlab.com/groups/gitlab-org/-/epics/6167) from the main database. In order to prepare for this change, we [validate the structure of the configuration](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/67877) in `database.yml` to ensure that only known databases are used.
+GitLab is adding support to run multiple databases, for example to
+[separate tables for the continuous integration features](https://gitlab.com/groups/gitlab-org/-/epics/6167)
+from the main database. In order to prepare for this change, we
+[validate the structure of the configuration](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/67877)
+in `database.yml` to ensure that only known databases are used.
 
-Previously, the `config/database.yml` would look like this:
+Previously, the `config/database.yml` looked like this:
 
 ```yaml
 production:
@@ -642,15 +646,16 @@ production:
   ...
 ```
 
-With the support for many databases the support for this
-syntax is deprecated and will be removed in [15.0](https://gitlab.com/gitlab-org/gitlab/-/issues/338182).
+With the support for many databases this
+syntax is [deprecated](https://gitlab.com/gitlab-org/gitlab/-/issues/338182)
+and will be removed in [15.0](https://gitlab.com/gitlab-org/gitlab/-/issues/338182).
 
 The new `config/database.yml` needs to include a database name
 to define a database configuration. Only `main:` and `ci:` database
-names are supported today. The `main:` needs to always be a first
+names are supported. The `main:` database must always be a first
 entry in a hash. This change applies to decomposed and non-decomposed
-change. If an invalidate or deprecated syntax is used the error
-or warning will be printed during application start.
+change. If an invalid or deprecated syntax is used the error
+or warning is printed during application start.
 
 ```yaml
 # Non-decomposed database