Update documentation README to reflect NextCloud 22.x behaviour?

[mackonsti]

Hello @rookie0 thank you for this great addition to NextCloud ! It took a while to understand how it works, so a kind request to update your README with some more points, namely:

• NextCloud 22.x now enforces an expiration date when sharing something, this must be reflected on your notes -- however not sure the impact?

• It appears that one needs first share a enclosing (parent) folder (of a file to be shared) in the NextCloud UI before accessing that file with the "Copy Sharing Path" option in the three dots (on the right);

• The "Copy Sharing Path" option in the three dots is not available for folders, and I guess this is normal (only files) so this is nice to point out;

• Despite having only one reference (setting) of "Sharing Path" in a connected NextCloud user by going to Settings > Sharing, when logged as administrator there are two instances/references (at least on NextCloud 22.2.x at least). Just a mention that the first one refers to the user, the second one to the system but there is no clear indication as to what precedes i.e. the system I guess but a mention would be great (and also possible differences?)

• When trying accessing a shared URL of a shared file and the enclosing (parent) folder is no longer shared (i.e. shared status removed) the result on browser is a white screen.

Is it possible to add some kind of text note when trying accessing a "Copy Sharing Path" URL of a file no longer shared instead of having a white page on browser?

• The concept of public/folder in Default sharing folder Settings, could you kindly expand a little? It is not clear to me, perhaps with an example? Also the Default copy prefix is it added to the main server's URL? Just a little more details would be very welcome.

Thank you again for your time, work and attention.

[rookie0]

Good suggestion, will do.