message: update review instructions
diff: To test it locally run ```git fetch && fit checkout twelveWordsCreateBug``` where twelveWordsCreateBug is a name of this branch (see under title) OR ```git fetch origin refs/pull/2590/merge:pr2590 && git checkout pr2590``` where 2590 is number of this pull request
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  +```npm i && npm run build:mainnet``` then run MultiCurrencyWallet/build.mainnet/index.html in browse
  