Update docs

docs/custom-actions/action-types.md

@@ -266,12 +266,24 @@ Allows uploading a file to a SFTP (SSH) server, specifying a hostname, port, use
 
 We recommend authenticating using a pre-generated keypair, which can be created under Control Panel -> Providers.
 
+### SFTP Download
+
+Allows downloading a file to a SFTP (SSH) server, specifying a hostname, port, username, password and the path to the file. The file content is downloaded to a Variable.
+
+We recommend authenticating using a pre-generated keypair, which can be created under Control Panel -> Providers.
+
 ### FTP(S) Upload
 
 Allows uploading a file to a FTP or FTPS (FTP with TLS/SSL) server, specifying a hostname, port, username, password, relative path to the file, whether to use SSL and whether to use passive mode. Finally, the file content can be specified, in which Variables are replaced.
 
 We recommend storing the password as a Global Variable.
 
+### FTP(S) Download
+
+Allows downloading a file to a FTP or FTPS (FTP with TLS/SSL) server, specifying a hostname, port, username, password, path, whether to use SSL and whether to use passive mode. The file content is downloaded to a Variable.
+
+We recommend storing the password as a Global Variable.
+
 ### Database Query
 
 Allows running a database query, with support for fetching out data in a series of variables. We recommend storing the password as a Global Variable.