message: Update the section about `.env` in README.md
diff: @@ -65,8 +65,8 @@ cargo build
  # Start the external services
  docker-compose up -d db s3
  # anything that doesn't run via docker-compose needs the settings defined in
  -# .env. Either via `. .env` as below, or via any dotenv shell integration.
  -. .env
  +# .env. Either via `. ./.env` as below, or via any dotenv shell integration.
  +. ./.env
  # Setup the database you just created
  cargo run -- database migrate
  # Build a sample crate to make sure it works
  @@ -215,7 +215,7 @@ If you want to explore or edit database manually, you can connect to the databas
  with the `psql` command.
  ```sh
  -. .env
  +. ./.env
  psql $DOCSRS_DATABASE_URL
  ```
  