Outdate link to russian translation

[lexfrei]

The existing link in the footer is not correct.
IDK where is the correct one, so I can't give you a PR, sorry.

diveintopython3/index.html

Line 62 in 793871b

<p class=c>Translations: <a href=http://code.google.com/p/inmersionenpython3/ lang=es hreflang=es>en espa&ntilde;ol</a>, <a href=http://gpiancastelli.altervista.org/dip3-it/ lang=it hreflang=it>in italiano</a>, <a href="http://ru.wikisource.org/wiki/%D0%9F%D0%BE%D0%B3%D1%80%D1%83%D0%B6%D0%B5%D0%BD%D0%B8%D0%B5_%D0%B2_Python_3_(%D0%9F%D0%B8%D0%BB%D0%B3%D1%80%D0%B8%D0%BC)" lang=ru hreflang=ru>на русском языке</a>, <a href=http://www.diveintopython3.ir/ lang=fa hreflang=fa dir=rtl>به پارسی</a>, <a href="http://diveintopython3.py.cz/" lang="cs" hreflang="cs">česky</a>

Also, the link in "about" in this repo is not working.