Refactor prerequisite notes, since INSTALL.TXT has the detailed

build instructions.

INSTALL.txt

@@ -8,19 +8,23 @@
     library installed (<http://site.icu-project.org/>). Rakudo can run
     without ICU, but some Unicode-related features do not work properly.
 
+    To get readline support (command history and editing), you'll also
+    need the "libreadline-dev" library.
+
     As an example, on Debian GNU/Linux or Ubuntu Linux, the necessary
     components for building Rakudo can be installed via the command
 
-        aptitude install build-essential libicu-dev git-core
+        aptitude install make gcc libicu-dev libreadline-dev git-core
 
     (Perl is installed by default already). To enable parallel testing you
     also need the CPAN module Test::Harness in version 3.16 or newer; you
     can control the number of parallel jobs with the "TEST_JOBS" environment
     variable.
 
   Building and invoking Rakudo
-    Because Rakudo is under rapid development, we generally recommend
-    downloading Rakudo directly from github and building from there:
+    If you're wanting the bleeding-edge version of the Rakudo Perl 6
+    compiler, we recommend downloading Rakudo directly from Github 
+    and building it from there.
 
         $ git clone git://github.com/rakudo/rakudo.git
 
@@ -78,7 +82,7 @@
     satify a minimum specified by the Rakudo being built -- Configure.pl
     and "make" will verify this for you.  Released versions of Rakudo
     always build against the latest release of Parrot; checkouts of 
-    the HEAD revision from github often require a version of Parrot 
+    Rakudo's HEAD revision from Github often require a version of Parrot 
     that is newer than the most recent Parrot monthly release.
 
     Once built, Rakudo's "make install" target will install Rakudo and its

README

@@ -14,33 +14,11 @@ Rakudo Perl 6
     For a high-level overview of implemented and missing features,
     please visit http://perl6.org/compilers/features .
 
-  Prerequisites
-    To build Rakudo you need at least a C compiler, a 'make' utility,
-    and Perl 5.8.4 or newer.  You probably also want a machine with a fair
-    amount of memory available: 1GB is known to be too small for building 
-    Rakudo, while 2GB is generally known to be sufficient.
-
-    In order to fully support Unicode, you'll also want to have the
-    ICU library installed (http://site.icu-project.org/).
-    Rakudo can run without ICU, but some Unicode-related features
-    will not work properly.
-
-    On Debian GNU/Linux or Ubuntu Linux, the necessary components
-    for building Rakudo can be installed via the command
-
-        aptitude install make gcc libicu-dev
-
-    Readline support also requires the "libreadline-dev" library.
-
-    On RedHat/Fedora/CentOS, the components can be installed with
-
-        yum groupinstall development-tools
-        yum install libicu-devel readline-devel
-
   Building Rakudo
     See the INSTALL.txt file for detailed prerequisites and build and
     installation instructions. The short version is
 
+    $ # recommended: install libicu-dev and libreadline-dev packages
     $ perl Configure.pl --gen-parrot --gen-nqp
     $ make
     $ make spectest # optional