docs: Update readme (#14)

Add the --include-extensions flag to the table of parameters for the
from-folder sub command.

Closes #13

Author: hugo-saci

readme.md

@@ -357,6 +357,7 @@ The **from-folder** sub-command processes a folder tree to upload photos to the
 | --album-picasa          |                `FALSE`                | Use the Picasa album name found in `.picasa.ini` files                                                                                                                        |
 | --ignore-sidecar-files  |                `FALSE`                | Don't upload sidecar with the photo.                                                                                                                                          |
 | --include-extensions    |                  all                  | Comma-separated list of extension to include. (e.g. .jpg,.heic)                                                                                                               |
+| --include-type          |                  all                  | Single file type to include. (`VIDEO` or `IMAGE`)                                                                                                                             |
 | --into-album            |                                       | Specify an album to import all files into                                                                                                                                     |
 | --manage-burst          |                                       | Manage burst photos. Possible values: NoStack, Stack, StackKeepRaw, StackKeepJPEG.  [See option's details](#burst-detection-and-management)                                               |
 | --manage-epson-fastfoto |                `FALSE`                | Manage Epson FastFoto file                                                                                                                                                    |