Update Yarn documentation (1.9.4)

Thibaut · Thibaut · commit 17b70ac46fb1 · 2018-08-19T18:08:05.000-04:00
diff --git a/lib/docs/scrapers/yarn.rb b/lib/docs/scrapers/yarn.rb
@@ -1,7 +1,7 @@
 module Docs
   class Yarn < UrlScraper
     self.type = 'yarn'
-    self.release = '1.7.0'
+    self.release = '1.9.4'
     self.base_url = 'https://yarnpkg.com/en/docs/'
     self.links = {
       home: 'https://yarnpkg.com/',
