minor #443 Improve copyFiles method examples #2 (kapiwko, weaverryan)

This PR was merged into the master branch.

Discussion
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Improve `copyFiles` method examples #2

Like in #442 Fix also `to` option in examples - paths are relative to build dir, not root dir.

Commits
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4b2ceda clarifying comment
676afcb Improve `copyFiles` method examples #2

Author: weaverryan

index.js

@@ -441,13 +441,14 @@ class Encore {
      *      Encore.copyFiles({
      *          from: './assets/images',
      *          pattern: /\.(png|jpg|jpeg)$/,
-     *          to: 'assets/images/[path][name].[ext]'
+     *          // to path is relative to the build directory
+     *          to: 'images/[path][name].[ext]'
      *      })
      *
      *      // Version files
      *      Encore.copyFiles({
      *          from: './assets/images',
-     *          to: 'assets/images/[path][name].[hash:8].[ext]'
+     *          to: 'images/[path][name].[hash:8].[ext]'
      *      })
      *
      *      // Add multiple configs in a single call