message: Fixing -s flag to -o flag to correctly output the config file on launcher part of README.md
diff: @@ -485,7 +485,7 @@ For testing purposes you will run 2 local production nodes talking to each other
  ```bash
  cd ~/eos/build
  cp ../genesis.json ./
  -./programs/launcher/launcher -p2 -s testnet.json --skip-signature -l local
  +./programs/launcher/launcher -p2 -o testnet.json --skip-signature -l local
  ```
  This command will generate 2 data folder for each instance of the node: `tn_data_0` and `tn_data_1`, as well as `testnet.json` file for the testnet configuration.
  