Update HISTORY.md
Update HISTORY.md

Mention the possibility of specifying a global store.

rstacruz/pnpm,pnpm/supi,rstacruz/pnpm,pnpm/supi,andreypopp/pnpm,rstacruz/pnpm,pnpm/pnpm,pnpm/pnpm,pnpm/supi,andreypopp/pnpm,andreypopp/pnpm,pnpm/pnpm