[cleanup] update tech stack in README
[cleanup] update tech stack in README

rickyeh/nimblecode,rickyeh/nimblecode,rickyeh/nimblecode,nimblecode/nimblecode,LinearAtWorst/cogile,marksanghoonkim/nimblecode,rickyeh/nimblecode,nimblecode/nimblecode,marksanghoonkim/nimblecode,nimblecode/nimblecode,marksanghoonkim/nimblecode,nimblecode/nimblecode,LinearAtWorst/cogile,marksanghoonkim/nimblecode