add README

README

@@ -7,6 +7,8 @@ Files and directories
 In the package, files are organized as follows:
 
   -+- README:    This file
+   |
+   +- INSTALL:   Building and installation instructions from the sources for all supported systems.
    |
    +- COPYING:   License
    |
@@ -25,59 +27,59 @@ In the package, files are organized as follows:
 Installation notes for Meteor Version 3.2
 ======================================================================
 
-	This file describes the building and installation instructions from the SOURCES for UNIX like systems.
-	NB: Building and running Meteor on MS Windows system has not been tested,
-	    but should easily be achieved as Meteor uses standard C++ code without any exotic dependencies.
+ This file describes the building and installation instructions from the SOURCES for UNIX like systems.
+ NB: Building and running Meteor on MS Windows system has not been tested,
+     but should easily be achieved as Meteor uses standard C++ code without any exotic dependencies.
 
 Supported Systems
 =================
 
-	Will work in most modern GNU/Linux, and macOS (10.5 or later with Intel processor) systems.
+ Will work in most modern GNU/Linux, and macOS (10.5 or later with Intel processor) systems.
 
 Building and running pre-requisite
 ==================================
 
-	1. Compiler collections with c++98 support (e.g. g++ or clang++)
+ 1. Compiler collections with c++98 support (e.g. g++ or clang++)
 
-	2. Ruby interpreter version 1.9 or later, with "inifile" rubygem module version 3.0.0 or later
+ 2. Ruby interpreter version 1.9 or later, with "inifile" rubygem module version 3.0.0 or later
 
-	3. bowtie2 version 2.3.5.1 or later, and bowtie 1.2.3 or later if you plan to use color space SOLiD data.
+ 3. bowtie2 version 2.3.5.1 or later, and bowtie 1.2.3 or later if you plan to use color space SOLiD data.
 
 Installation
 ============
 
-	On a GNU/Linux system, we recommand to have g++, make and ruby installed via the package manager of your distribution.
-	e.g.:
-	
-	on Debian/Ubuntu plateforms (as root or sudoer):
-	apt-get install make g++ ruby
-	
-	on Redhat/Fedora/CentOS plateforms (as root or sudoer):
-	yum install make gcc-c++ ruby
-
-	- To build Meteor, open a terminal and execute the following commands:
-	
-	cd meteor-pipeline/src/
-	make
-	
-	This will create two binaries (meteor-counter and meteor-profiler) in the folder meteor-pipeline/src/build/
-	
-	- Now copy the meteor pipeline executables in a folder present in the PATH environment variable.
-
-	e.g. as root or sudoer (this will install meteor for all user):
-	cp build/meteor-counter build/meteor-profiler ../meteor.rb /usr/local/bin
-
-	Or as common user (every user of meteor will have to do this):
-	[ ! -d ~/bin ] && mkdir ~/bin
-	cp build/meteor-counter build/meteor-profiler ../meteor.rb ~/bin
-
-	- Then install the ruby module inifile (>= 3.0.0).
-	
-	As root or sudoer:
-	gem install inifile
-
-	As common user (every user of meteor will have to do this):
-	gem install inifile --user-install
+ On a GNU/Linux system, we recommand to have g++, make and ruby installed via the package manager of your distribution.
+ e.g.:
+
+    on Debian/Ubuntu plateforms (as root or sudoer):
+    apt-get install make g++ ruby
+
+    on Redhat/Fedora/CentOS plateforms (as root or sudoer):
+    yum install make gcc-c++ ruby
+
+ - To build Meteor, open a terminal and execute the following commands:
+
+    cd meteor-pipeline/src/
+    make
+
+ This will create two binaries (meteor-counter and meteor-profiler) in the folder meteor-pipeline/src/build/
+
+ - Now copy the meteor pipeline executables in a folder present in the PATH environment variable.
+
+    e.g. as root or sudoer (this will install meteor for all user):
+    cp build/meteor-counter build/meteor-profiler ../meteor.rb /usr/local/bin
+
+    Or as common user (every user of meteor will have to do this):
+    [ ! -d ~/bin ] && mkdir ~/bin
+    cp build/meteor-counter build/meteor-profiler ../meteor.rb ~/bin
+
+ - Then install the ruby module inifile (>= 3.0.0).
+
+    As root or sudoer:
+    gem install inifile
+
+    As common user (every user of meteor will have to do this):
+    gem install inifile --user-install
 
 
 ======================================================================