Commandline: Add fzf-select

Examples-(fish).md

@@ -28,6 +28,19 @@ function fzf-cdhist-widget -d 'cd to one of the previously visited location'
 end
 ```
 
+### Commandline
+
+The following is useful to manipulate the commandline from the result of jobs. For instance, calling `fzf-select` over `pacman -Qlq fzf` will allow you to select files in the `fzf` package and print them bck to commandline for further manipulation.
+```
+function fzf-select -d 'fzf commandline job and print unescaped selection back to commandline'
+	set -l cmd (commandline -j)
+	[ "$cmd" ]; or return
+	eval $cmd | eval (__fzfcmd) -m --tiebreak=index --select-1 --exit-0 | string join ' ' | read -l result
+	[ "$result" ]; and commandline -j -- $result
+	commandline -f repaint
+end
+```
+
 ### Git
 
 ```