Refine README (#179)

Co-authored-by: Masafumi Koba <473530+ybiquitous@users.noreply.github.com>

README.md

@@ -4,9 +4,9 @@
 
 > The recommended shareable config for Stylelint.
 
-It turns on all the Stylelint rules that help you [_avoid errors_](https://stylelint.io/user-guide/rules/list/#avoid-errors).
+It turns on most of the Stylelint rules that help you [_avoid errors_](https://stylelint.io/user-guide/rules/#avoid-errors).
 
-Use it as is or as a foundation for your own config.
+You can use this as a foundation for your own config, but we suggest most people use our [standard config](https://www.npmjs.com/package/stylelint-config-standard) instead which extends this config and adds a few more rules to enforce common conventions.
 
 ## Installation