emacs: remove default email address from org file

Signed-off-by: Micky Ching <mickyching@163.com>
emacs: README: add minted install guide

Signed-off-by: Micky Ching <mickyching@163.com>
emacs: README: add basic useful command list

Signed-off-by: Micky Ching <mickyching@163.com>
emacs: fix latex bold font display

Signed-off-by: Micky Ching <mickyching@163.com>
emacs: README: add org mode command list

Signed-off-by: Micky Ching <mickyching@163.com>
emacs: fix font size setting for latex

Signed-off-by: Micky Ching <mickyching@163.com>