Add MIGRATION.md: summary of EDM4hep 0.x to 1.0 migration
Usage:
$ export CEPCSW_LCG_VERSION=109.0.0
$ source setup.sh
$ ./build.sh
$ source setup.sh
Edited by lintao@ihep.ac.cn
Usage:
$ export CEPCSW_LCG_VERSION=109.0.0
$ source setup.sh
$ ./build.sh
$ source setup.sh