message: Set the default DB name in env.SAMPLE
diff: @@ -10,4 +10,4 @@ LEDGER_EMISSION_TOKEN_CONTRACT_ADDRESS="0x610178dA211FEF7D417bC0e6FeD39F05609AD7
  # database name to store issued tokens in postgres
  PG_USER=
  PG_PASSWORD=
  -PG_DB=
  \ No newline at end of file
  +PG_DB="blockchain-carbon-accounting"
  