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, 5 insertions, 5 deletions

diff --git a/doc/api/boards.md b/doc/api/boards.md
index a96206f5df3..926a0be1d8b 100644
--- a/doc/api/boards.md
+++ b/doc/api/boards.md
@@ -141,7 +141,7 @@ Example response:
   }
 ```
 
-## Create a board **[STARTER]**
+## Create a board **(STARTER)**
 
 Creates a board.
 
@@ -209,7 +209,7 @@ Example response:
   }
 ```
 
-## Update a board **[STARTER]**
+## Update a board **(STARTER)**
 
 > [Introduced][ee-5954] in [GitLab Starter](https://about.gitlab.com/pricing/) 11.1.
 
@@ -291,7 +291,7 @@ Example response:
   }
 ```
 
-## Delete a board **[STARTER]**
+## Delete a board **(STARTER)**
 
 Deletes a board.
 
@@ -405,8 +405,8 @@ POST /projects/:id/boards/:board_id/lists
 | `id` | integer/string | yes | The ID or [URL-encoded path of the project](README.md#namespaced-path-encoding) owned by the authenticated user |
 | `board_id` | integer | yes | The ID of a board |
 | `label_id` | integer | no | The ID of a label |
-| `assignee_id` **[PREMIUM]** | integer | no | The ID of a user |
-| `milestone_id` **[PREMIUM]** | integer | no | The ID of a milestone |
+| `assignee_id` **(PREMIUM)** | integer | no | The ID of a user |
+| `milestone_id` **(PREMIUM)** | integer | no | The ID of a milestone |
 
 NOTE: **Note**:
 Label, assignee and milestone arguments are mutually exclusive,