update README.md
Multiple changes:
(1) remove dot in filename
(2) add alias section
remove dot from zsh config files
add tmux.conf
add 1-second delay
set starting window index to 1
add split window
set starting pane index to 1
cycle through panes using h,j,k,l
enable vi keys
remove vim files
remove .bash_profile
add copy-paste functionality
add vim with pathogen