[rt-users] documentation patch for README doc

[Aleksey Tsalolikhin]

Hi.  Upgrading from RT 3.8.2 to 3.8.8 on CentOS 5.5.  Following the
README and the UPGRADING docs, I ran "make upgrade" which died with:


All dependencies have been found.
/opt/local/bin/ginstall -c -m 0755 -o root -g www -d /opt/rt3/etc
make: /opt/local/bin/ginstall: Command not found
make: *** [config-install] Error 127


I fixed this by running "./configure ; make upgrade".

Suggest change of:

     As a user with permission to install RT in your chosen installation
     directory, type:

       make upgrade

     This will install new binaries, config files and libraries without
     overwriting your RT database.

to

     As a user with permission to install RT in your chosen installation
     directory, type:

       ./configure
       make upgrade

     This will install new binaries, config files and libraries without
     overwriting your RT database.

Best,
Aleksey