docs: docs update after release (#778)

docs/file-request.md

@@ -0,0 +1,74 @@
+File Requests
+=============
+
+File request objects represent a file request associated with a folder.
+
+<!-- START doctoc generated TOC please keep comment here to allow auto update -->
+<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
+
+- [Get a File Request's Information](#get-a-file-requests-information)
+- [Copy a File Request's Information](#copy-a-file-requests-information)
+- [Update a File Request's Information](#update-a-file-requests-information)
+- [Delete a File Request](#delete-a-file-request)
+
+<!-- END doctoc generated TOC please keep comment here to allow auto update -->
+
+Get a File Request's Information
+------------------------
+
+Calling `FileRequestsManager.GetFileRequestByIdAsync(string fileRequestId)`returns information on a file request.
+
+<!-- sample get_file_requests_id -->
+```c#
+BoxFileRequestObject fileRequest = await client.FileRequestsManager.GetFileRequestByIdAsync("12345");
+```
+
+Copy a File Request's Information
+---------------------------
+
+Calling  `FileRequestsManager.CopyFileRequestAsync(string fileRequestId, BoxFileRequestCopyRequest copyRequest)` copies an existing file request that is already present 
+on one folder, and applies it to another folder.
+
+<!-- sample post_file_requests_id_copy -->
+```c#
+var destinationFolder = new BoxRequestEntity
+{
+    Id = "123456",
+    Type = BoxType.folder
+};
+
+var copyRequest = new BoxFileRequestCopyRequest
+{
+    Description = "New file request description",
+    Folder = destinationFolder
+};
+
+BoxFileRequestObject fileRequest = await client.FileRequestsManager.CopyFileRequestAsync("12345", copyRequest);
+```
+
+Update a File Request's Information
+---------------------------
+
+Calling `FileRequestsManager.UpdateFileRequestAsync(string fileRequestId, BoxFileRequestUpdateRequest updateRequest)` updates a file request. This can be used to activate 
+or deactivate a file request.
+
+<!-- sample put_file_requests_id -->
+```c#
+var updateRequest = new BoxFileRequestUpdateRequest
+{
+    Description = "New file request description",
+    Status = BoxFileRequestStatus.inactive
+};
+
+BoxFileRequestObject fileRequest = await client.FileRequestsManager.UpdateFileRequestAsync("12345", updateRequest);
+```
+
+Delete a File Request
+-------------
+
+Calling `FileRequestsManager.DeleteFileRequestAsync(string fileRequestId)` deletes a file request permanently.
+
+<!-- sample delete_file_requests_id -->
+```c#
+bool isSuccess = await client.FileRequestsManager.DeleteFileRequestAsync("12345");
+```