code review 6573065: doc: clarify that the displayed tar file name is an example

doc/install.html

Index: doc/install.html 
=================================================================== 
--- a/doc/install.html 
+++ b/doc/install.html 
@@ -116,14 +116,20 @@ 
 
 <p> 
 Extract <a href="http://code.google.com/p/go/downloads/list?q=OpSys-FreeBSD+OR+OpSys-Linux+OR+OpSys-OSX+Type-Archive">the archive</a> 
-into <code>/usr/local</code>, creating a Go tree in <code>/usr/local/go</code>: 
+into <code>/usr/local</code>, creating a Go tree in <code>/usr/local/go</code>. 
+For example: 
 </p> 
 
 <pre> 
-tar -C /usr/local -xzf go1.0.2.linux-amd64.tar.gz 
+tar -C /usr/local -xzf go1.0.3.linux-amd64.tar.gz 
 </pre> 
 
 <p> 
+The name of the archive may differ, depending on the version of Go you are 
+installing and your system's operating system and processor architecture. 
+</p> 
+ 
+<p> 
 (Typically these commands must be run as root or through <code>sudo</code>.) 
 </p>