Minor readibility improvements

docs/api/inventory/add-service.md

@@ -8,11 +8,12 @@ category: 626de009b977e3003179f7dd
 
 This section describes how to add a Service of any type to PMM Inventory.
 
-In PMM versions prior to 3.0.0, we featured a separate API call for each Service type. Starting with PMM 3.0.0, we offer a single API endpoint for all Service types. While previously the Service type was defined by the endpoint, i.e. `Services/AddMySQL`, now the Service type must be specified as the top-level property of the request payload. Along with this single API endpoint, we are deprecating individual API endpoints for each Service type.
+In PMM versions prior to 3.0.0, we featured a separate API call for each Service type. Starting with PMM 3.0.0, we have streamlined the process by offering single API endpoint for all Service types. 
+Previously, the Service type was defined by the endpoint, such as `Services/AddMySQL`. In the new approach, the Service type must be specified as the top-level property of the request payload. As part of the single API endpoint update, we have deprecated individual API endpoints for each Service type.
 
-Let's see how to add a Node of type `mysql` using the old and new API calls.
+Here's how to add a Node of type `mysql` using the old and the new API calls:
 
-Old API call:
+**Old API call**:
 
 ```shell
 curl --insecure -X POST \
@@ -36,7 +37,7 @@ curl --insecure -X POST \
 '
 ```
 
-New API call:
+**New API call**:
 
 ```shell
 curl --insecure -X POST \
@@ -71,4 +72,4 @@ You can choose from the following Service types:
 - haproxy
 - external
 
-To get the authentication token, please visit [the Authentication page](ref:authentication).
+To get the authentication token, check [the Authentication page](ref:authentication).