Remove short-comings from README, as they are not present anymore

README.md

@@ -172,10 +172,8 @@ Thanks to [jwalk][jwalk], all there was left to do is to write a command-line in
 ### Limitations
 
 * Interactive mode only looks good in dark terminals (see [this issue](https://github.com/Byron/dua-cli/issues/13))
-* _Hard links_ are not understood, thus hard-linked files will possibly be counted multiple times.
 * _Symlinks_ are followed and we obtain the logical size of the file they point to. Ideally, we only
   count their actual size.
-* _logical filesize_ is used instead of computed or estimating actual size on disk.
 * _easy fix_: file names in main window are not truncated if too large. They are cut off on the right.
 * There are plenty of examples in `tests/fixtures` which don't render correctly in interactive mode.
   This can be due to graphemes not interpreted correctly. With Chinese characters for instance,