Removed Technorati links and broken images from the /community/weblogs/index.md

This is issue #106 for ruby/www.ruby-lang.org, so I have changed the code to reflect the suggested change. 

I have removed the Technorati link from the bg, de, en, fr, id, it, pl, pt, zh_cn and zh_tw versions of the site.

I have also removed a broken image/"30-day graph of activity for 'ruby' among blogs on
Technorati." that is currently live on the bg, id, pl, pt, zh_cn and zh_tw versions of the site.

Please say if I have done anything incorrectly during this process. This is the first time I have done a pull request on a large site, so want to learn if there is anything I should do in future.

I hope I have been able to make some small contribution.