diff --git a/Home.md b/Home.md
index 6dc92fc..2c29764 100644
--- a/Home.md
+++ b/Home.md
@@ -1,8 +1,8 @@
 # Welcome to the mruby wiki!
 
-# **!!Notice!!**
+# !!Notice!!
     This is a preliminary release for internal team review.
-    The URLs and addresses discribed below are not available yet.
+    The URLs and addresses described below are not available yet.
     The official release will be announced later.
     Any suggestion for modification is welcome.
     Delays in replies are to be expected. Sorry in advance.
@@ -10,8 +10,8 @@
 ## What's mruby
 
 mruby is the lightweight implementation of the Ruby language complying to
-the [ISO standard](http://www.ipa.go.jp/about/press/20120402_2.html). 
-mruby can run Ruby code in 'interpreter mode' or 'compile and execute it on a virtual machine' depending on how the developer's preference.
+the [ISO standard](http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=59579). 
+mruby can run Ruby code in 'interpreter mode' or 'compile and execute it on a virtual machine' depending on the developer's preference.
 
 This achievement was sponsored by the Regional Innovation Creation R&D Programs of
 the Ministry of Economy, Trade and Industry of Japan.