Broken links in documentation

Hi

I’ve noticed that in the readme.txt and on the https://ww.wp.xz.cn/plugins/ecwid-shopping-cart/ page, there are several links to pages on https://ecwid.to (e.g. https://ecwid.to/ecwid-site, https://ecwid.to/ecwid-pricing, https://ecwid.to/ecwid-store-control-panel), all of which are broken links. When I try to access those https://ecwid.to links, I get an SSL error that says the certificate there is only valid for bit.ly and www.bit.ly.