Remove right margin from author's name block

[jainaman224]

For example see here: http://algobook.net/algo/bubble-sort/?lang=

[lex111]

Assign to me please.

[jainaman224]

@lex111 You can proceed to work on this issue. But we expect to have progress within 3 days. Thanks

[poush]

@lex111 any updates? Feel free to ask if you have any questions or need any help. Find us on http://gitter.im/bvpmosc/community

[virtual]

Hello! If you still don't hear back from Lex, could you please review my PR? Thanks!