Unlock the Editor’s Digest for freeRoula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter.Sequoia Capital’s former China unit has raised an Rmb18bn ($2.5bn) fund, defying a fundraising freeze that has hit rivals and building its war chest to invest in technology start-ups in the country.HongShan, the Beijing-based group that split off last year from one of the world’s largest venture capital firms over geopolitical issues, successfully closed the renminbi fund in...