chore(.appveyor.yml): add deploy config
chore(.appveyor.yml): add deploy config

leanprover-community/lean,fgdorais/lean,Kha/lean,rlewis1988/lean,johoelzl/lean,fpvandoorn/lean,Kha/lean,leodemoura/lean,fpvandoorn/lean,leanprover/lean,rlewis1988/lean,Kha/lean,leanprover-community/lean,leanprover-community/lean,johoelzl/lean,fpvandoorn/lean,leodemoura/lean,leodemoura/lean,avigad/lean,fgdorais/lean,dselsam/lean,fpvandoorn/lean,fpvandoorn/lean,leanprover/lean,leanprover/lean,fpvandoorn/lean,dselsam/lean,dselsam/lean,leodemoura/lean,fgdorais/lean,leodemoura/lean,johoelzl/lean,leanprover/lean,rlewis1988/lean,fgdorais/lean,leanprover-community/lean,digama0/lean,digama0/lean,leodemoura/lean,fgdorais/lean,leanprover/lean,rlewis1988/lean,dselsam/lean,Kha/lean,Kha/lean,Kha/lean,avigad/lean,leanprover/lean,avigad/lean,avigad/lean,dselsam/lean,digama0/lean,leanprover-community/lean,johoelzl/lean,leanprover-community/lean,digama0/lean,digama0/lean,johoelzl/lean,rlewis1988/lean,fgdorais/lean,johoelzl/lean,avigad/lean,rlewis1988/lean,digama0/lean,avigad/lean,dselsam/lean