The `Respecting .gitignore` link pointed to a section of the readme which no longer exists.

- https://github.com/sharkdp/fd
- https://mike.place/2017/fzf-fd/

/cc @williamsmj

Since https://github.com/BurntSushi/ripgrep/issues/200 is fixed in
0.7.1, we can safely suggest ripgrep as the candidate generator as it
has a more precise implementation of gitignore filtering than the silver
searcher.

Related: #1072
/cc @janlazo

/cc @chrisjohnson

Close #1067
Close #1083

Close #1017

Removed outdated animated GIF.

See #944

Add PayPal donation button

Close #893

Thanks to @majkinetor. Close #869.

CTRL-R binding used to start with --no-sort to list the matched commands
in chronological order. However, it has been a constant source of
confusion. Let's enable it by default from now on. The sorted result
shouldn't be too confusing as we use --tiebreak=index.

Goes well with --height

Replace the "temp file" workaround with the "read" function: it's
simpler and faster.

Use proper escaping, remove the custom function.

The "file" widget uses last token as root for the "find" command.
This replaces the equivalent of '**' completion in bash/zsh.
The "$dir" non-expanded variable can be used in FZF_CTRL_T_COMMAND to
set the root.

Close #726

Close #711