Fix many 'when manual' anchors

doc/ci/review_apps/index.md

@@ -60,7 +60,7 @@ To get a better understanding of Review Apps, review documentation on how enviro
 1. Learn about [environments](../environments.md) and their role in the development workflow.
 1. Learn about [CI variables](../variables/README.md) and how they can be used in your CI jobs.
 1. Explore the [`environment` syntax](../yaml/README.md#environment) as defined in `.gitlab-ci.yml`. This will become a primary reference.
-1. Additionally, find out about [manual actions](../environments.md#manual-actions) and how you can use them to deploy to critical environments like production with the push of a button.
+1. Additionally, find out about [manual actions](../environments.md#manually-deploying-to-environments) and how you can use them to deploy to critical environments like production with the push of a button.
 1. Follow the [example tutorials](#examples). These will guide you through setting up infrastructure and using Review Apps.
 
 ### Configuring dynamic environments

doc/ci/yaml/README.md

@@ -776,7 +776,7 @@ In the above example we set up the `review_app` job to deploy to the `review`
 environment, and we also defined a new `stop_review_app` job under `on_stop`.
 Once the `review_app` job is successfully finished, it will trigger the
 `stop_review_app` job based on what is defined under `when`. In this case we
-set it up to `manual` so it will need a [manual action](#manual-actions) via
+set it up to `manual` so it will need a [manual action](#whenmanual) via
 GitLab's web interface in order to run.
 
 The `stop_review_app` job is **required** to have the following keywords defined:

doc/development/documentation/index.md

@@ -498,7 +498,7 @@ If you want to know the in-depth details, here's what's really happening:
 
 The following GitLab features are used among others:
 
-- [Manual actions](../../ci/yaml/README.md#manual-actions)
+- [Manual actions](../../ci/yaml/README.md#whenmanual)
 - [Multi project pipelines](https://docs.gitlab.com/ee/ci/multi_project_pipeline_graphs.html)
 - [Review Apps](../../ci/review_apps/index.md)
 - [Artifacts](../../ci/yaml/README.md#artifacts)

doc/user/project/merge_requests/index.md

@@ -46,7 +46,7 @@ A. Consider you are a software developer working in a team:
 1. You verify your changes with [JUnit test reports](../../../ci/junit_test_reports.md) in GitLab CI/CD
 1. You request the approval from your manager
 1. Your manager pushes a commit with his final review, [approves the merge request](https://docs.gitlab.com/ee/user/project/merge_requests/merge_request_approvals.html), and set it to [merge when pipeline succeeds](#merge-when-pipeline-succeeds) (Merge Request Approvals are available in GitLab Starter)
-1. Your changes get deployed to production with [manual actions](../../../ci/yaml/README.md#manual-actions) for GitLab CI/CD
+1. Your changes get deployed to production with [manual actions](../../../ci/yaml/README.md#whenmanual) for GitLab CI/CD
 1. Your implementations were successfully shipped to your customer
 
 B. Consider you're a web developer writing a webpage for your company's: