diff --git a/README b/README
index 5e9568990f5a1ea0ea341d91df497bcc16c524cf..b4ca8e55f2a84ec97825133a2c5d64b31a1d9e13 100644
--- a/README
+++ b/README
@@ -1,31 +1,43 @@
-#Email from SImon Leeman
-# Discussion at FLS2010
-Laurent,
+##########################################################################
+April 11th, 2011
+LNLS
+Laurent S. Nadolski
 
-I have attached our Tracy-3 distribution as a tarball. I have also included some code (m4.cc) that should eventually become max-iv_lib.cc within the Tracy-3 distribution. It's a bit of a mess though. ;-)
+##########################################################################
+Numerical recipes
+1/ xutils-dev for makedepend
+2/ makedepend in the src file of nrecipes directory
 
-You will also find a lattice file for our base line design with four damping wigglers. The kick map for the damping wiggler is also attached.
+##########################################################################
+Installation of Tracy3 
 
-Let me know if you need anything else or have any questions.
+What is necessary:
+1/ gcc
+2/ g++
+3/ autoconf
+4/ libtool
+5/ libgls0-dev lib + development library with header such as gls_sf.h
 
-Regards,
-Simon
+##########################################################################
+Modify .bashrc to get environment variables 
+cf set_var.sh or set_var4LNLS.sh
+Set the path to fit your computer architecture
 
+##########################################################################
+For compilation of TracyIII
+In root directory of TracyIII, run the command:
+./make_for_gcc.sh opt 
 
+An executable file is generated in directory TracyIII/tracy/tracy/bin:
+soltracy
 
+this file can be put in your path to run the code from anywhere
 
+#########################################################################
+Example to test the code: 
+executable is soltracy located in  $TRACY_LIB/tools 
 
-Laurent,
 
-I have attached the Makefile.am I use to compile m4.cc. I also define several shell variables in my ~/.bashrc:
 
-export LIBPATH=/usr/local/gfortran/lib
-export LD_LIBRARY_PATH=/usr/local/gfortran/lib:/usr/local/lib:/usr/lib
-export NUM_REC=$HOME/num_rec
-export TRACY_LIB=$HOME/tracy/tracy-3.5
-export THOR_LIB=$HOME/Thor-2.0
-export LAT="$HOME/projects/in/lattice"
 
-Let me know if that allows you to compile...
 
-Simon