Swap scsslint for stylelint

Also include an obnoxious workaround for Sass outputting Unicode characters.

Author: jakezatecky

.scss-lint.yml

@@ -0,0 +1,2 @@
+extends:
+  - stylelint-config-takiyon

.stylelintrc.yml

@@ -1,9 +1,4 @@
 # Examples
 
 1. Clone this repo
-2. Install [Ruby][ruby]
-3. Run `gem install sass scss_lint`
-4. Run `npm install`
-5. Start the server with `npm run examples`
-
-[ruby]: https://www.ruby-lang.org/en/downloads/
+2. Start the server with `npm run examples`