Unclear descriptions of options

[thomas694]

• I am requesting an update of documentation.
• I am running the latest version of BDfR
• I have read the Opening an issue (link ../tree/master/docs/CONTRIBUTING.md#opening-an-issue ?)

Description

In my opinion the descriptions for --no-dupes and --search-existing could be improved. They are describing something that actually isn't done.

--no-dupes: - This flag will not redownload files if they were already downloaded in the current run

Should be:
This flag will skip the file when a duplicate is downloaded in the current run
Reason:
At this point the file has already been downloaded again and it's only decided whether to skip saving or create a hard link.

--search-existing: - The hashes are used to remove duplicates if --no-dupes is supplied or make hard links if --make-hard-links is supplied

Should be:
The hashes are used to skip duplicates if --no-dupes is supplied or make hard links if --make-hard-links is supplied
Reason:
The meaning of "remove" only gets clear together with the explanation for --no-dupes. Duplicates aren't removed (afterwards), it's only prevented to save a duplicate under a new name.

Is it ok to provide a PR for that?