added sftptogo to protocols/index

protocols/index.md

@@ -21,6 +21,7 @@ onedrive
 sharepoint
 box
 files.com
+sftptogo
 dracoon
 irods
 spectra
@@ -80,6 +81,9 @@ A highly secure, platform-independent enterprise filesharing solution
 ### [Files.com](files.com.md)
 Files.com is Smart Cloud Storage for modern teams
 
+### [SFTP To Go](sftptogo.md)
+SFTP To Go is a secure cloud storage with SFTP / FTPS / S3 / web file access designed for smooth and simple data transfer, integration, and sharing.
+
 ### [iRODS](irods.md)
 The Integrated Rule-Oriented Data System (iRODS) is an open source data management software used by research organizations and government agencies worldwide.
 
@@ -138,6 +142,7 @@ Protocols with limited support for modification dates only allow to set the modi
 | Microsoft OneDrive   | ✅ ||
 | Microsoft Sharepoint | ✅ ||
 | Files.com            | ✅ ||
+| SFTP To Go           | ✅ ||
 | DRACOON              | ✅ ||
 | Backblaze B2         | ❌	| ✅ |
 | Box.com              | ❌	| ✅ |