updated number of build items

Installing-Tracks-2.2.2-on-CentOS-6.5-Minimal-x86_64.md

@@ -575,7 +575,7 @@ For the changes to take effect immediately, or you can wait until next system re
 $ sudo  service sshd restart
 ```
 
-##MySQL database
+##4. MySQL database
 
 Initial MySQL configuration.
 Start mysql
@@ -603,7 +603,7 @@ $ mysql -u root -p
 > exit;
 ```
 
-##4. Ruby Version Manager
+##5. Ruby Version Manager
 Validate RVM prerequisite binaries are installed by executing the following as root or with sudo.
 ```
 $ sudo for name in {bash,awk,sed,grep,ls,cp,tar,curl,gunzip,bunzip2,git,svn} ; do which $name ;  done
@@ -622,7 +622,7 @@ $ echo gem: --no-ri --no-rdoc >> ~/.gemrc
 
 Log off then on or $ source ~/.profile before continuing.
 
-##5. Ruby 1.9
+##6. Ruby 1.9
 Tracks installation.textile states Tracks version 2.2.2 works best with Ruby 1.9, let's make sure we have RVM's requirements have been met then install ruby 1.9.
 ```
 $ rvm requirements
@@ -679,7 +679,7 @@ $ rvm --default use 1.9.3
 $ rvm list
 ```
 
-##6. Bundler
+##7. Bundler
 Bundler is an additional requirement of Tracks.
 ```
 $ gem install bundler
@@ -690,7 +690,7 @@ $ bundle -v
 Bundler version 1.6.2
 ```
 
-##7. Phusion Passenger
+##8. Phusion Passenger
 We are using Apache, thus Phusion Passenger provides painless integration between Apache and Tracks.
 ```
 $ gem install passenger