1. move package installation to front, since it is required by package installed modes.
2. All color-theme has an error message.
(1) interactive to read frequent files, Still not perfect yet. It should be input command then choose which file according to some hints information
(2) turn off global-linum-mode for quicker access to doc-view mode. Should be turn off only in the doc-view buffer. Still need improvements.
Starting to pick up the learning curve.
(1) Started from Chapter 3.
(2) in the middle of (1) before, realised that defadvise mechnisum is not familar enough to me yet. Then start to play with defadvise mode first. (in the middle of learning now)
defadvise sample code of Chapter 2 is finished. This is a good one.
show line number only go-to-line is called.
set save places active, and save the information at /users/herbert19lee/.emacs.d/.places file. therefore, everytime a file is opened, the cursor will be at exactly the same location as before.
no need of argument input for C-cf for freq-n-files command. Hints information still need automatic updates for te later improvement.