update readme file

update readme file
fixed some Properties bugs
add a test page

rewrite the storage landing page using markdown language
Revert "fixed some Properties bugs"

This reverts commit b264b1564a008bc84e138b272a9aacbacdd45e5a.
update files
add pic files
bug fixed
add new pic files
bug fixed
fixed bugs of properties
Merge remote-tracking branch 'origin/stage'

Conflicts:
	README.md