:%s/foo/bar/g
yy - Copy line into buffer
p - Paste the line someplace else
zo - to open a single fold under the cursor.
zc - to close the fold under the cursor.
zR - to open all folds.
zM - to close all folds.
:help <command> - Read more about a configuration setting
vimrc Configuration Guide: https://www.freecodecamp.org/news/vimrc-configuration-guide-customize-your-vim-editor/
Using Vim for Go Development: https://dev.to/jogendra/using-vim-for-go-development-5hc6
Vim-Go Plugin: https://github.com/fatih/vim-go