Update projects.md. Fix Search project by name format and added a curl example.

doc/api/projects.md

@@ -1257,17 +1257,21 @@ endpoint can be accessed without authentication if the project is publicly
 accessible.
 
 ```
-GET /projects/search/:query
+GET /projects
 ```
 
 Parameters:
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `query` | string | yes | A string contained in the project name |
+| `search` | 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 |
 
+```bash
+curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/projects?search=test
+```
+
 ## Start the Housekeeping task for a Project
 
 >**Note:** This feature was introduced in GitLab 9.0