docs: add guarantee note for resume-xmlupload (#868)

docs/cli-commands.md

@@ -177,6 +177,10 @@ this file must remain in place.
 
 ## `resume-xmlupload`
 
+| <center>Warning</center>                                                    |
+|--------------------------------------------------------------------------|
+| We do not guarantee that the state of an xmlupload is cleanly saved after `Ctrl + C`. We only guarantee this for `dsp-tools xmlupload --interrupt-after`. |
+
 This command resumes a previously interrupted XML upload.
 
 ```bash
@@ -194,6 +198,7 @@ the pickle file `~/.dsp-tools/xmluploads/[server]/resumable/latest.pkl` must exi
 Currently, only one interrupted upload can be resumed at a time per server.
 
 
+
 ## `excel2json`
 
 This command creates a JSON project definition file from a nested folder structure with Excel files.