Revert "Update README"

This reverts commit 3a0b288a95.

README.md

@@ -7,5 +7,4 @@ This repository contains setup or config files for generic CLI applications, suc
 * `vimrc` is ViM config script and should be installed at `~/.vimrc`.
 * `tmux.conf` is tmux config file and should be installed at `~/.tmux.conf`.
 #### Installation
-* `install.sh` script copies above files to their respective destinations;
-  * can be called with an argument, which will be used as user name.
+* `install.sh` script copies above files to their respective destinations.