fix: Add try/catch fallback around Buffer.from

Author: Zearin

lib/index.js

@@ -5,6 +5,8 @@ var dirname = require('path').dirname;
 var extname = require('path').extname;
 var marked = require('marked');
 
+
+
 /**
  * Expose `plugin`.
  */
@@ -35,7 +37,13 @@ function plugin(options){
 
       debug('converting file: %s', file);
       var str = marked(data.contents.toString(), options);
-      data.contents = Buffer.from(str);
+      try {
+        // preferred
+        data.contents = Buffer.from(str);
+      } catch (err) {
+        // node versions < (5.10 | 6)
+        data.contents = new Buffer(str);
+      }
       keys.forEach(function(key) {
         data[key] = marked(data[key], options);
       });