colon.md: add usage of colon in shell

Finish wrote an note with Markdown firt time. NOT easy to use.

Signed-off-by: parr0triver <freeordie.k@gmail.com>
bashrc.kk: add alias cp

alias cp to 'cp -v'

Signed-off-by: parr0triver <freeordie.k@gmail.com>