Correct visibility documentation for private project snippets

doc/api/project_snippets.md

@@ -15,7 +15,7 @@ Constants for snippet visibility levels are:
 
 | visibility | Description |
 | ---------- | ----------- |
-| `private`  | The snippet is visible only to the snippet creator |
+| `private`  | The snippet is visible only to project members |
 | `internal` | The snippet is visible for any logged in user except [external users](../user/permissions.md#external-users) |
 | `public`   | The snippet can be accessed without any authentication |