Add description about Show Anchors bookmarklet/button
Add icon by FatCow Web Hosting:
http://www.iconfinder.com/icondetails/35639/16/anchor_link_sailing_icon
+ http://www.iconfinder.com/icondetails/35767/16/add_expand_green_plus_green_round_bullet_plus_round_icon
Install page for v. 0.2.0pre7 - 2013-02-11