Add a new entry for Sentry

doc/integration/README.md

@@ -25,6 +25,7 @@ See the documentation below for details on how to configure these services.
 - [PlantUML](../administration/integration/plantuml.md) Configure PlantUML to use diagrams in AsciiDoc documents.
 - [reCAPTCHA](recaptcha.md) Configure GitLab to use Google reCAPTCHA for new users
 - [SAML](saml.md) Configure GitLab as a SAML 2.0 Service Provider
+- [Sentry](../user/project/operations/error_tracking.md#sentry-error-tracking) Enable issue linking from Sentry and view Sentry crash reports in GitLab
 - [Trello](trello_power_up.md) Integrate Trello with GitLab
 
 > GitLab Enterprise Edition contains [advanced Jenkins support](jenkins.md).

doc/user/project/operations/error_tracking.md

@@ -6,7 +6,7 @@ Error tracking allows developers to easily discover and view the errors that the
 
 ## Sentry error tracking
 
-[Sentry](https://sentry.io/) is an open source error tracking system. GitLab allows administrators to connect Sentry to GitLab, to allow users to view a list of Sentry errors in GitLab itself.
+[Sentry](https://sentry.io/) is an open source error tracking system. GitLab allows administrators to connect Sentry to GitLab, to allow users to view a list of Sentry errors in GitLab.
 
 ### Deploying Sentry
 
@@ -31,6 +31,10 @@ GitLab provides an easy way to connect Sentry to your project:
 1. Click **Save changes** for the changes to take effect.
 1. You can now visit **Operations > Error Tracking** in your project's sidebar to [view a list](#error-tracking-list) of Sentry errors.
 
+### Enabling Gitlab issues links
+
+You may also want to enable Sentry's GitLab integration by following the steps in the [Sentry documentation](https://docs.sentry.io/workflow/integrations/global-integrations/#gitlab)
+
 ## Error Tracking List
 
 NOTE: **Note:**