Merge branch 'master-readme' into 'master'

Updates to README

See merge request faser/calypso!81

README.md

-First barebone project for Calypso based on Athena master. Only packages not included in atlas/athena are included. The current build relies on the entire ATLAS software library. 
+Calypso is the FASER offline software system, based on the ATLAS Athena and LHCb GAUDI frameworks
 
-The following sequence will allow you to compile Calypso 1.0.0 on any machine with cvmfs access.
+Start by creating a personal fork of https://gitlab.cern.ch/faser/calypso.git (using the gitlab web interface)
+
+Then the following sequence will allow you to compile and run Calypso on any machine with cvmfs access.
 ```
 #clone the (forked) project to your local machine
 git clone --recursive https://:@gitlab.cern.ch:8443/$USERNAME/calypso.git 
 
-# You also need to update faser-common as a submodule
-cd calypso/faser-common
-git submodule update --init
-cd ../..
-
 #The next three lines are used to setup the ATLAS release environment
 export ATLAS_LOCAL_ROOT_BASE=/cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase 
 source ${ATLAS_LOCAL_ROOT_BASE}/user/atlasLocalSetup.sh