README.md in simple_cache_lock-0.1.3 vs README.md in simple_cache_lock-0.1.4

@@ -1,9 +1,10 @@
 # SimpleCacheLock
 
-Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file `lib/simple_cache_lock`. To experiment with that code, run `bin/console` for an interactive prompt.
+Warn: No testing added!!! Use at your risk
 
-TODO: Delete this and the text above, and describe your gem
+Lock and wait your cache until it finished. don't let concurrent processes write 
+same cache_key. make them to wait instead.
 
 ## Installation
 
 Add this line to your application's Gemfile: