[doc] README update + changelog

5 jobs for v1.0.0 in 4 minutes and 11 seconds (queued for 5 minutes and 23 seconds)
Name Stage Failure
failed
build_clang Build There is an unknown failure, please try again
Checking out e825cf10 as v1.0.0...
Updating/initializing submodules...
Synchronizing submodule url for 'schedulers/batsched'
Synchronizing submodule url for 'schedulers/pybatsim'
Cloning into '/builds/batsim/batsim/schedulers/batsched'...
warning: You appear to have cloned an empty repository.
fatal: no matching remote head
Fetched in submodule path 'schedulers/batsched', but it did not contain c2bbc1f2a9ab12856ea782a30321f0b22c5b1a13. Direct fetching of that commit failed.
ERROR: Job failed: exit code 1
failed
build_batsched Build There is an unknown failure, please try again
Fetching changes...
HEAD is now at e825cf1 [doc] README update + changelog
Checking out e825cf10 as v1.0.0...
Updating/initializing submodules...
Synchronizing submodule url for 'schedulers/batsched'
Synchronizing submodule url for 'schedulers/pybatsim'
fatal: Needed a single revision
Unable to find current revision in submodule path 'schedulers/batsched'
ERROR: Job failed: exit code 1