Fix various broken doc links

doc/administration/gitaly/index.md

@@ -635,7 +635,7 @@ Confirm the following are all true:
   UI, it immediatley fails with a red `401 Unauthorized` banner.
 - Creating a new project and [initializing it with a README](../../gitlab-basics/create-project.md#blank-projects)
   successfully creates the project but doesn't create the README.
-- When [tailing the logs](https://docs.gitlab.com/omnibus/settings/logs.md#tail-logs-in-a-console-on-the-server) on an app node and reproducing the error, you get `401` errors
+- When [tailing the logs](https://docs.gitlab.com/omnibus/settings/logs.html#tail-logs-in-a-console-on-the-server) on an app node and reproducing the error, you get `401` errors
   when reaching the `/api/v4/internal/allowed` endpoint:
 
   ```sh

doc/development/architecture.md

@@ -142,7 +142,7 @@ Component statuses are linked to configuration documentation for each component.
 | [GitLab self-monitoring: Prometheus](#prometheus) | Time-series database, metrics collection, and query service | [✅][prometheus-omnibus] | [✅][prometheus-charts] | [⚙][prometheus-charts] | [✅](../user/gitlab_com/index.md#prometheus) | ❌ | ❌ | CE & EE |
 | [GitLab self-monitoring: Alertmanager](#alertmanager) | Deduplicates, groups, and routes alerts from Prometheus | [⚙][alertmanager-omnibus] | [✅][alertmanager-charts] |  [⚙][alertmanager-charts] | [✅](https://about.gitlab.com/handbook/engineering/monitoring/) | ❌ | ❌ | CE & EE |
 | [GitLab self-monitoring: Grafana](#grafana) | Metrics dashboard | [✅][grafana-omnibus] | [⤓][grafana-charts] |  [⤓][grafana-charts] | [✅](https://dashboards.gitlab.com/d/RZmbBr7mk/gitlab-triage?refresh=30s) | ❌ | ❌ | CE & EE |
-| [GitLab self-monitoring: Sentry](#sentry) | Track errors generated by the GitLab instance | [⤓][sentry-omnibus] | [❌][sentry-charts] | [❌][sentry-charts] | [✅](https://about.gitlab.com/handbook/support/workflows/services/gitlab_com/500_errors.html#searching-sentry) | [⤓][gitlab-yml] | [⤓][gitlab-yml] | CE & EE |
+| [GitLab self-monitoring: Sentry](#sentry) | Track errors generated by the GitLab instance | [⤓][sentry-omnibus] | [❌][sentry-charts] | [❌][sentry-charts] | [✅](https://about.gitlab.com/handbook/support/workflows/500_errors.html#searching-sentry) | [⤓][gitlab-yml] | [⤓][gitlab-yml] | CE & EE |
 | [GitLab self-monitoring: Jaeger](#jaeger) | View traces generated by the GitLab instance | [❌][jaeger-omnibus] | [❌][jaeger-charts] | [❌][jaeger-charts] | [❌](https://gitlab.com/gitlab-org/omnibus-gitlab/issues/4104) | [⤓][jaeger-source] | [⚙][jaeger-gdk] | CE & EE |
 | [Redis Exporter](#redis-exporter) | Prometheus endpoint with Redis metrics | [✅][redis-exporter-omnibus] | [✅][redis-exporter-charts] | [✅][redis-exporter-charts] | [✅](https://about.gitlab.com/handbook/engineering/monitoring/) | ❌ | ❌ | CE & EE |
 | [Postgres Exporter](#postgres-exporter) | Prometheus endpoint with PostgreSQL metrics | [✅][postgres-exporter-omnibus] | [✅][postgres-exporter-charts] | [✅][postgres-exporter-charts] | [✅](https://about.gitlab.com/handbook/engineering/monitoring/) | ❌ | ❌ | CE & EE |

doc/university/support/README.md

@@ -145,7 +145,7 @@ Zendesk is our Support Centre and our main communication line with our Customers
 
 Some tickets need specific knowledge or a deep understanding of a particular component and will need to be escalated to a Senior Service Engineer or Developer
 
-- Read about [Escalation](https://about.gitlab.com/handbook/support/workflows/shared/support_workflows/issue_escalations.html)
+- Read about [Escalation](https://about.gitlab.com/handbook/support/workflows/issue_escalations.html)
 - Find the macros in Zendesk for ticket escalations
 - Take a look at the [GitLab.com Team page](https://about.gitlab.com/team/) to find the resident experts in their fields