Changing badges to use parentheses not brackets

Previously, we used brackets to denote the tier badges,
but this made Kramdown, the docs site Markdown renderer,
show many warnings when building the site. This is now
fixed by using parentheses instead of square brackets.

This was caused by [PREMIUM] looking like a link to
Kramdown, which couldn't find a URL there.

See:
- https://gitlab.com/gitlab-com/gitlab-docs/merge_requests/484
- https://gitlab.com/gitlab-org/gitlab-ce/issues/63800

1 files changed, 9 insertions, 9 deletions

diff --git a/doc/ci/introduction/index.md b/doc/ci/introduction/index.md
index ef9f9a9973c..fc89f0fc94f 100644
--- a/doc/ci/introduction/index.md
+++ b/doc/ci/introduction/index.md
@@ -177,22 +177,22 @@ according to each stage (Verify, Package, Release).
 
 1. **Verify**:
     - Automatically build and test your application with Continuous Integration.
-    - Analyze your source code quality with [GitLab Code Quality](../../user/project/merge_requests/code_quality.md). **[STARTER]**
-    - Determine the performance impact of code changes with [Browser Performance Testing](../../user/project/merge_requests/browser_performance_testing.md). **[PREMIUM]**
-    - Perform a series of tests, such as [Container Scanning](../../user/application_security/container_scanning/index.md) **[ULTIMATE]**, [Dependency Scanning](../../user/application_security/dependency_scanning/index.md) **[ULTIMATE]**, and [JUnit tests](../junit_test_reports.md).
+    - Analyze your source code quality with [GitLab Code Quality](../../user/project/merge_requests/code_quality.md). **(STARTER)**
+    - Determine the performance impact of code changes with [Browser Performance Testing](../../user/project/merge_requests/browser_performance_testing.md). **(PREMIUM)**
+    - Perform a series of tests, such as [Container Scanning](../../user/application_security/container_scanning/index.md) **(ULTIMATE)**, [Dependency Scanning](../../user/application_security/dependency_scanning/index.md) **(ULTIMATE)**, and [JUnit tests](../junit_test_reports.md).
     - Deploy your changes with [Review Apps](../review_apps/index.md) to preview the app changes on every branch.
 1. **Package**:
     - Store Docker images with [Container Registry](../../user/project/container_registry.md).
-    - Store NPM packages with [NPM Registry](../../user/project/packages/npm_registry.md). **[PREMIUM]**
-    - Store Maven artifacts with [Maven Repository](../../user/project/packages/maven_repository.md). **[PREMIUM]**
+    - Store NPM packages with [NPM Registry](../../user/project/packages/npm_registry.md). **(PREMIUM)**
+    - Store Maven artifacts with [Maven Repository](../../user/project/packages/maven_repository.md). **(PREMIUM)**
 1. **Release**:
     - Continuous Deployment, automatically deploying your app to production.
     - Continuous Delivery, manually click to deploy your app to production.
     - Deploy static websites with [GitLab Pages](../../user/project/pages/index.md).
-    - Ship features to only a portion of your pods and let a percentage of your user base to visit the temporarily deployed feature with [Canary Deployments](../../user/project/canary_deployments.md). **[PREMIUM]**
-    - Deploy your features behind [Feature Flags](../../user/project/operations/feature_flags.md). **[PREMIUM]**
+    - Ship features to only a portion of your pods and let a percentage of your user base to visit the temporarily deployed feature with [Canary Deployments](../../user/project/canary_deployments.md). **(PREMIUM)**
+    - Deploy your features behind [Feature Flags](../../user/project/operations/feature_flags.md). **(PREMIUM)**
     - Add release notes to any Git tag with [GitLab Releases](../../user/project/releases/index.md).
-    - View of the current health and status of each CI environment running on Kubernetes with [Deploy Boards](../../user/project/deploy_boards.md). **[PREMIUM]**
+    - View of the current health and status of each CI environment running on Kubernetes with [Deploy Boards](../../user/project/deploy_boards.md). **(PREMIUM)**
     -  Deploy your application to a production environment in a Kubernetes cluster with [Auto Deploy](../../topics/autodevops/index.md#auto-deploy).
 
 With GitLab CI/CD you can also:
@@ -201,7 +201,7 @@ With GitLab CI/CD you can also:
 - Deploy your app to different [environments](../environments.md).
 - Install your own [GitLab Runner](https://docs.gitlab.com/runner/).
 - [Schedule pipelines](../../user/project/pipelines/schedules.md).
-- Check for app vulnerabilities with [Security Test reports](../../user/project/merge_requests/index.md#security-reports-ultimate). **[ULTIMATE]**
+- Check for app vulnerabilities with [Security Test reports](../../user/project/merge_requests/index.md#security-reports-ultimate). **(ULTIMATE)**
 
 To see all CI/CD features, navigate back to the [CI/CD index](../README.md).