Merge branch '23555-project-api-doc' into 'master'

Resolve "Breaking a parameter table in Projects API doc"

## What does this MR do?

- A broken markdown in `Search for projects by name` is fixed.
    - cf. !6681
- Pagination is removed from `Search for projects by name` like other docs as it is shown in [/api/README.html](https://docs.gitlab.com/ce/api/README.html)

## Moving docs to a new location?

No.

## What are the relevant issue numbers?

Closes #23555

See merge request !7007

CHANGELOG.md

@@ -135,6 +135,7 @@ Please view this file on the master branch, on stable branches it's out of date.
   - Delete dynamic environments
   - Fix buggy iOS tooltip layering behavior.
   - Make guests unable to view MRs on private projects
+  - Fix broken Project API docs (Takuya Noguchi)
 
 ## 8.12.7
 

doc/api/projects.md

@@ -1333,8 +1333,6 @@ Parameters:
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `query` (required) - A string contained in the project name
-| `per_page` (optional) - number of projects to return per page
-| `page` (optional) - the page to retrieve
-| `order_by` (optional) - Return requests ordered by `id`, `name`, `created_at` or `last_activity_at` fields
+| `query` | string | yes | A string contained in the project name |
+| `order_by` | string | no | Return requests ordered by `id`, `name`, `created_at` or `last_activity_at` fields |
 | `sort` | string | no | Return requests sorted in `asc` or `desc` order |