message: Update CLI README
diff: @@ -37,7 +37,7 @@ $ stc --srcDir="./src" --outDir="./dist" --indexFile="index.st.css"
  To transform your project stylesheets to target JavaScript modules containing the transformed source files, you must provide the `indexFile` paramter with an empty string.
  ```sh
  -$ stc --srcDir="./src" --outDir="./dist" --indexFile=""
  +$ stc --srcDir="./src" --outDir="./dist"
  ```
  ## License
  