Turn code-repeating comment into an intent comment (#173)

The current comment just repeats what the code does and is not useful. My think, it will be better to specify the intent as suggested.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/rfs.js b/lib/rfs.js
index 3cae1ee..706354b 100644
--- a/lib/rfs.js
+++ b/lib/rfs.js
@@ -90,7 +90,7 @@ module.exports = class {
             return match;
           }
 
-          // Multiply by remValue if value is in rem
+          // Convert to px if in rem
           if (unit === 'rem') {
             value *= this.opts.remValue;
           }