Incident Management docs: Correct name of feature and remove old image

doc/operations/incident_management/alert_integrations.md

@@ -27,12 +27,12 @@ The list displays the integration name, type, and status (enabled or disabled):
 
 ## Configuration
 
-GitLab can receive alerts via a [HTTP endpoint](#generic-http-endpoint) that you configure,
+GitLab can receive alerts via a HTTP endpoint that you configure,
 or the [Prometheus integration](#external-prometheus-integration).
 
-### Generic HTTP Endpoint **CORE**
+### Single HTTP Endpoint **CORE**
 
-Enabling the Generic HTTP Endpoint activates a unique HTTP endpoint that can
+Enabling the HTTP Endpoint in a GitLab projects activates it to
 receive alert payloads in JSON format. You can always
 [customize the payload](#customize-the-alert-payload-outside-of-gitlab) to your liking.
 
@@ -172,7 +172,7 @@ If the existing alert is already `resolved`, GitLab creates a new alert instead.
 
 WARNING:
 We are building deeper integration with Opsgenie and other alerting tools through
-[HTTP endpoint integrations](#generic-http-endpoint) so you can see alerts within
+[HTTP endpoint integrations](#single-http-endpoint) so you can see alerts within
 the GitLab interface. As a result, the previous direct link to Opsgenie Alerts from
 the GitLab alerts list is scheduled for deprecation following the 13.7 release on December 22, 2020.
 
@@ -181,7 +181,7 @@ the GitLab alerts list is scheduled for deprecation following the 13.7 release o
 You can monitor alerts using a GitLab integration with [Opsgenie](https://www.atlassian.com/software/opsgenie).
 
 If you enable the Opsgenie integration, you can't have other GitLab alert
-services, such as [Generic Alerts](alert_integrations.md) or Prometheus alerts,
+services
 active at the same time.
 
 To enable Opsgenie integration:

doc/operations/incident_management/incidents.md

@@ -46,10 +46,7 @@ Incident, you have two options to do this manually.
 With Maintainer or higher [permissions](../../user/permissions.md), you can enable
  GitLab to create incident automatically whenever an alert is triggered:
 
-1. Navigate to **Settings > Operations > Incidents** and expand **Incidents**:
-
-   ![Incident Management Settings](img/incident_management_settings_v13_3.png)
-
+1. Navigate to **Settings > Operations > Incidents** and expand **Incidents**.
 1. Check the **Create an incident** checkbox.
 1. To customize the incident, select an
    [issue template](../../user/project/description_templates.md#creating-issue-templates).