fix (#70)

fix

Co-authored-by: MaxchilKH <m.w.bohdanowicz@gmail.com>

src/InternshipSystem.Api/Controllers/DocumentsController.cs

@@ -75,7 +75,7 @@ namespace InternshipSystem.Api.Controllers
                 return BadRequest(e.Message);
             }
 
-            return Ok();
+            return Ok(internship.Documentation.First(d => d.Type == documentRequest.Type));
         }
 
         [HttpPut("{documentId}/scan")]