Conferences: add GopherCon China 2026 Change-Id: I4fcea28e25f758c7d350232b0b069b590a34f90d GitHub-Last-Rev: dfa7dd04b00de98fd1e824b04aa357b674a944c0 GitHub-Pull-Request: golang/wiki#91 Reviewed-on: https://go-review.googlesource.com/c/wiki/+/747980 Reviewed-by: Sean Liao <sean@liao.dev>