link fixed

closes #1057
this link won't work :(
not sure if it's permanent but right now direct link to the image is https://leto19e.storage.yandex.net/rdisk/b54f9103b823bc4736f3f3dc28e6d2da/mpfs/wWENDFjI_yyeYelosYTzeTZOexYDJuWgJNFA2sR-k4SzbSTsxmU553Sy6GevtJoX924mUhuVNiktKwt4_olT1g==?uid=0&filename=logo_theme_spots.png&disposition=inline&hash=&limit=0&content_type=image%2Fpng&rtoken=25c77bc2e583dac822140b042a9f4217&rtimestamp=544a0799&force_default=no (still I don't think it's the good idea).

let's just update the link to new hash. as we are aware of the problem I hope we won't mess everything again :)