message: egrid-data-loader readme - intro and formatting improvement
diff: # egrid-data-loader
  -This project imports the Data from https://www.epa.gov/sites/production/files/2020-01/egrid2018_all_files.zip into the Fabric network. Install the dependencies with `npm`:
  +This project imports data curated by the U.S. Environmental Protection Agency and U.S. Energy Information Administration into the Fabric network for use of recording emissions data. Install the dependencies with `npm`:
  $ npm install
  @@ -9,16 +9,19 @@ This project imports the Data from https://www.epa.gov/sites/production/files/20
  1. Download and extract the data:
  $ wget https://www.epa.gov/sites/production/files/2020-01/egrid2018_all_files.zip
  +
  $ unzip egrid2018_all_files.zip
  2. Download the utility identifiers from [Form EIA-861](https://www.eia.gov/electricity/data/eia861/) and unzip:
  $ wget https://www.eia.gov/electricity/data/eia861/zip/f8612019.zip
  +
  $ unzip f8612019.zip
  3. Load utility emissions data from the XLSX files (for now two different sheets are supported):
  $ node index.js load_utility_emissions eGRID2018_Data_v2.xlsx NRL18
  +
  $ node index.js load_utility_emissions eGRID2018_Data_v2.xlsx ST18
  4. Load utility lookup data from the XLSX file Utility_Data_2019.xlsx:
  