Teach wemux to install to the user's home directory

Signed-off-by: Johnneylee Jack Rollins <Johnneylee.Rollins@gmail.com>
Update README.md to reflect installing to $HOME

Signed-off-by: Johnneylee Jack Rollins <Johnneylee.Rollins@gmail.com>
Remove extra whitespace

Signed-off-by: Johnneylee Jack Rollins <Johnneylee.Rollins@gmail.com>