docs(readme): move long term caching guide from errant section (webpack-contrib#231)

Author: maisano

README.md

@@ -268,6 +268,10 @@ module.exports = {
 }
 ```
 
+#### Long Term Caching
+
+For long term caching use `filename: "[contenthash].css"`. Optionally add `[name]`.
+
 <h2 align="center">Maintainers</h2>
 
 <table>
@@ -284,10 +288,6 @@ module.exports = {
   <tbody>
 </table>
 
-#### Long Term Caching
-
-For long term caching use `filename: "[contenthash].css"`. Optionally add `[name]`.
-
 
 ## License