Docs: Sync latest master docs with 7.5.x (#33156)

* Docs: Sync latest master docs with 7.5.x

* remove some remaining next aliases and links

* Docs: Removed v8 doc changes

* fixed merge issue

docs/sources/datasources/postgres.md

@@ -6,18 +6,13 @@ aliases = ["/docs/grafana/latest/features/datasources/postgres/"]
 weight = 1200
 +++
 
-# Using PostgreSQL in Grafana
+# PostgreSQL data source
 
-Grafana ships with a built-in PostgreSQL data source plugin that allows you to query and visualize data from a PostgreSQL compatible database.
+Grafana ships with a built-in PostgreSQL data source plugin that allows you to query and visualize data from a PostgreSQL compatible database. This topic explains options, variables, querying, and other options specific to this data source. For instructions about how to add a data source to Grafana, refer to [Add a data source]({{< relref "add-a-data-source.md" >}}). Only users with the organization admin role can add data sources.
 
-## Adding the data source
+## PostgreSQL settings
 
-1. Open the side menu by clicking the Grafana icon in the top header.
-1. In the side menu under the `Configuration` icon you should find a link named `Data Sources`.
-1. Click the `+ Add data source` button in the top header.
-1. Select *PostgreSQL* from the *Type* dropdown.
-
-### Data source options
+To access PostgreSQL settings, hover your mouse over the **Configuration** (gear) icon, then click **Data Sources**, and then click the Prometheus data source.
 
 Name               | Description
 -----------------  | -------------
@@ -415,6 +410,7 @@ datasources:
       postgresVersion: 903 # 903=9.3, 904=9.4, 905=9.5, 906=9.6, 1000=10
       timescaledb: false
 ```
+>**Note:** In the above code, the `postgresVersion` value of `10` refers to version PotgreSQL 10 and above.
 
 If you encounter metric request errors or other issues:
 - Make sure your data source YAML file parameters exactly match the example. This includes parameter names and use of quotation marks.