Add 'mkdir -p …' to Ubuntu instructions, see #982

Author: sharkdp

README.md

@@ -185,6 +185,7 @@ apt install bat
 If you install `bat` this way, please note that the executable may be installed as `batcat` instead of `bat` (due to [a name
 clash with another package](https://github.com/sharkdp/bat/issues/982)). You can set up a `bat -> batcat` symlink or alias to prevent any issues that may come up because of this and to be consistent with other distrutions:
 ``` bash
+mkdir -p ~/.local/bin
 ln -s /usr/bin/batcat ~/.local/bin/bat
 ```