README.md in rufus-lru-1.0.4 vs README.md in rufus-lru-1.0.5

@@ -15,20 +15,29 @@
 
 Once the maxsize is reached, the hash will discard the element that was the
 least recently used (hence LRU).
 
     require 'rubygems'
-    require 'rufus/lru'
+    require 'rufus-lru'
 
     h = Rufus::Lru::Hash.new(3)
 
     5.times { |i| h[i] = "a" * i }
 
     puts h.inspect # >> {2=>"aa", 3=>"aaa", 4=>"aaaa"}
 
     h[:newer] = 'b'
 
     puts h.inspect # >> {:newer=>"b", 3=>"aaa", 4=>"aaaa"}
+
+Rufus::Lru::Hash isn't thread-safe, if you need something that is, use Rufus::Lru::SynchronizedHash
+
+    require 'rubygems'
+    require 'rufus-lru'
+
+    h = Rufus::Lru::SyncrhonizedHash.new(3)
+
+    # ...
 
 
 ## dependencies
 
 None.