README.md in gem-fast-0.0.6 vs README.md in gem-fast-0.0.6.1

- old
+ new
@@ -1,21 +1,42 @@
-Welcome!
\ No newline at end of file
+# Welcome!
+
+Gem-fast, let your gem installation swing!
+see this blog: [为 gem install 按上翅膀 -- gem-fast](http://www.cnblogs.com/dazuiba/archive/2010/10/28/1863904.html)
+
+![Screen cast](http://images.cnblogs.com/cnblogs_com/dazuiba//gem-fast-1.jpg "gem-fast")
+
+
+# Known Issue:
+
+1. Sometimes We need to expire local cache, i.e: latest_specs.4.8.gz
+2. When user cancel an installation, local cache is hafe-downloaded, this will break the next installation
+3. check curl installation before install gem-fast.gem  
+I need add a pre_install_book to Gem, but Rubygems have an bug here  
+see: [Gem.pre_install-does-not-working-as-it-named](http://help.rubygems.org/discussions/problems/378-gempre_install-does-not-working-as-it-named)
+
+# TODO:
+
+* Reacting the Caching strategy
+
+	1. change cache folder from gem/cache to somewhere else(so that we do not need sudo as least )  
+	2. support mtime cacheing