Update Erlang documentation (19.3, 18.3)

lib/docs/scrapers/erlang.rb

@@ -41,7 +41,7 @@ module Docs
     HTML
 
     version '19' do
-      self.release = '19.2'
+      self.release = '19.3'
       self.dir = '/Users/Thibaut/DevDocs/Docs/Erlang19'
     end