delete those testing
add license and readme
render index
add option posts_per_page
use a better name
add todo for about
delete the renderer,use dict but not update the attributes
rm the config.py and renderer
add clean
ok. add about page
use en description
a simple readme
Merge branch 'dev'

* dev:
  a simple readme
  use en description
  ok. add about page
  add clean
  rm the config.py and renderer
  delete the renderer,use dict but not update the attributes
  add todo for about
  use a better name
  add option posts_per_page
  render index
  add license and readme
  delete those testing