Crosslink to project traffic API page, explain

doc/api/project_statistics.md

@@ -8,12 +8,12 @@ type: reference, api
 # Project statistics API **(FREE)**
 
 Every API call to [project](../user/project/index.md) statistics must be authenticated.
+Retrieving these statistics requires write access to the repository.
 
-## Get the statistics of the last 30 days
+This API retrieves the number of times the project is either cloned or pulled
+with the HTTP method. SSH fetches are not included.
 
-Retrieving the statistics requires write access to the repository.
-Currently only HTTP fetches statistics are returned.
-Fetches statistics includes both clones and pulls count and are HTTP only, SSH fetches are not included.
+## Get the statistics of the last 30 days
 
 ```plaintext
 GET /projects/:id/statistics

doc/user/permissions.md

@@ -119,7 +119,7 @@ The following table lists project permissions available for each role:
 | [Projects](project/index.md):<br>View [wiki](project/wiki/index.md) pages                                               | ✓        | ✓        | ✓         | ✓          | ✓     |
 | [Projects](project/index.md):<br>Create [snippets](snippets.md)                                                         |          | ✓        | ✓         | ✓          | ✓     |
 | [Projects](project/index.md):<br>Manage labels                                                                          |          | ✓        | ✓         | ✓          | ✓     |
-| [Projects](project/index.md):<br>View project statistics                                                                |          | ✓        | ✓         | ✓          | ✓     |
+| [Projects](project/index.md):<br>View [project traffic statistics](../api/project_statistics.md)                        |          | ✓        | ✓         | ✓          | ✓     |
 | [Projects](project/index.md):<br>Create, edit, delete [milestones](project/milestones/index.md).                        |          |          | ✓         | ✓          | ✓     |
 | [Projects](project/index.md):<br>Create, edit, delete [releases](project/releases/index.md)                             |          |          | ✓ (*13*)  | ✓ (*13*)   | ✓ (*13*) |
 | [Projects](project/index.md):<br>Create, edit [wiki](project/wiki/index.md) pages                                       |          |          | ✓         | ✓          | ✓     |